Home / 131,462.20-197,193.30-89,990.20

Finding the Fourth Proportional to 131,462.20, 197,193.30 and 89,990.20

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Solution

The fourth proportional to 131,462.20, 197,193.30 and 89,990.20 is: 134,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,462.20 : 197,193.30 = 89,990.20 : x
  2. Step 2: Convert to fraction form
    131,462.20/197,193.30 = 89,990.20/x
  3. Step 3: Cross multiply
    131,462.20x = 197,193.30 × 89,990.20
  4. Step 4: Simplify right side
    131,462.20x = 17,745,464,505.66
  5. Step 5: Solve for x
    x = 17,745,464,505.66/131,462.20
  6. Step 6: Final answer
    x = 134,985.30

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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.