Home / 115,294.20-172,941.30-91,966.20

Finding the Fourth Proportional to 115,294.20, 172,941.30 and 91,966.20

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Solution

The fourth proportional to 115,294.20, 172,941.30 and 91,966.20 is: 137,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,294.20 : 172,941.30 = 91,966.20 : x
  2. Step 2: Convert to fraction form
    115,294.20/172,941.30 = 91,966.20/x
  3. Step 3: Cross multiply
    115,294.20x = 172,941.30 × 91,966.20
  4. Step 4: Simplify right side
    115,294.20x = 15,904,754,184.06
  5. Step 5: Solve for x
    x = 15,904,754,184.06/115,294.20
  6. Step 6: Final answer
    x = 137,949.30

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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.