Home / 123,064.20-184,596.30-81,000.90

Finding the Fourth Proportional to 123,064.20, 184,596.30 and 81,000.90

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Solution

The fourth proportional to 123,064.20, 184,596.30 and 81,000.90 is: 121,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,064.20 : 184,596.30 = 81,000.90 : x
  2. Step 2: Convert to fraction form
    123,064.20/184,596.30 = 81,000.90/x
  3. Step 3: Cross multiply
    123,064.20x = 184,596.30 × 81,000.90
  4. Step 4: Simplify right side
    123,064.20x = 14,952,466,436.67
  5. Step 5: Solve for x
    x = 14,952,466,436.67/123,064.20
  6. Step 6: Final answer
    x = 121,501.35

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.