Home / 131,460.30-197,190.45-84,221.10

Finding the Fourth Proportional to 131,460.30, 197,190.45 and 84,221.10

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Solution

The fourth proportional to 131,460.30, 197,190.45 and 84,221.10 is: 126,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,460.30 : 197,190.45 = 84,221.10 : x
  2. Step 2: Convert to fraction form
    131,460.30/197,190.45 = 84,221.10/x
  3. Step 3: Cross multiply
    131,460.30x = 197,190.45 × 84,221.10
  4. Step 4: Simplify right side
    131,460.30x = 16,607,596,608.50
  5. Step 5: Solve for x
    x = 16,607,596,608.50/131,460.30
  6. Step 6: Final answer
    x = 126,331.65

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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.