Home / 156,864.76-216,363.90-103,132.60

Finding the Fourth Proportional to 156,864.76, 216,363.90 and 103,132.60

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Solution

The fourth proportional to 156,864.76, 216,363.90 and 103,132.60 is: 142,251.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,864.76 : 216,363.90 = 103,132.60 : x
  2. Step 2: Convert to fraction form
    156,864.76/216,363.90 = 103,132.60/x
  3. Step 3: Cross multiply
    156,864.76x = 216,363.90 × 103,132.60
  4. Step 4: Simplify right side
    156,864.76x = 22,314,171,553.14
  5. Step 5: Solve for x
    x = 22,314,171,553.14/156,864.76
  6. Step 6: Final answer
    x = 142,251.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.