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Finding the Fourth Proportional to 181,062.16, 249,861.02 and 100,487.61

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Solution

The fourth proportional to 181,062.16, 249,861.02 and 100,487.61 is: 138,670.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,062.16 : 249,861.02 = 100,487.61 : x
  2. Step 2: Convert to fraction form
    181,062.16/249,861.02 = 100,487.61/x
  3. Step 3: Cross multiply
    181,062.16x = 249,861.02 × 100,487.61
  4. Step 4: Simplify right side
    181,062.16x = 25,107,936,229.52
  5. Step 5: Solve for x
    x = 25,107,936,229.52/181,062.16
  6. Step 6: Final answer
    x = 138,670.26

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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.