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Finding the Fourth Proportional to 103,527.86, 155,229.03 and 67,531.23

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Solution

The fourth proportional to 103,527.86, 155,229.03 and 67,531.23 is: 101,255.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,527.86 : 155,229.03 = 67,531.23 : x
  2. Step 2: Convert to fraction form
    103,527.86/155,229.03 = 67,531.23/x
  3. Step 3: Cross multiply
    103,527.86x = 155,229.03 × 67,531.23
  4. Step 4: Simplify right side
    103,527.86x = 10,482,807,327.61
  5. Step 5: Solve for x
    x = 10,482,807,327.61/103,527.86
  6. Step 6: Final answer
    x = 101,255.91

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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.