Home / 103,691.10-155,363.85-97,470.30

Finding the Fourth Proportional to 103,691.10, 155,363.85 and 97,470.30

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Solution

The fourth proportional to 103,691.10, 155,363.85 and 97,470.30 is: 146,043.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,691.10 : 155,363.85 = 97,470.30 : x
  2. Step 2: Convert to fraction form
    103,691.10/155,363.85 = 97,470.30/x
  3. Step 3: Cross multiply
    103,691.10x = 155,363.85 × 97,470.30
  4. Step 4: Simplify right side
    103,691.10x = 15,143,361,068.66
  5. Step 5: Solve for x
    x = 15,143,361,068.66/103,691.10
  6. Step 6: Final answer
    x = 146,043.02

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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.