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Finding the Fourth Proportional to 100,707.13, 151,073 and 34,166.30

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Solution

The fourth proportional to 100,707.13, 151,073 and 34,166.30 is: 51,253.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,707.13 : 151,073 = 34,166.30 : x
  2. Step 2: Convert to fraction form
    100,707.13/151,073 = 34,166.30/x
  3. Step 3: Cross multiply
    100,707.13x = 151,073 × 34,166.30
  4. Step 4: Simplify right side
    100,707.13x = 5,161,605,439.90
  5. Step 5: Solve for x
    x = 5,161,605,439.90/100,707.13
  6. Step 6: Final answer
    x = 51,253.62

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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.