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Finding the Fourth Proportional to 161,376.39, 242,062.38 and 72,567

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Solution

The fourth proportional to 161,376.39, 242,062.38 and 72,567 is: 108,849.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,376.39 : 242,062.38 = 72,567 : x
  2. Step 2: Convert to fraction form
    161,376.39/242,062.38 = 72,567/x
  3. Step 3: Cross multiply
    161,376.39x = 242,062.38 × 72,567
  4. Step 4: Simplify right side
    161,376.39x = 17,565,740,729.46
  5. Step 5: Solve for x
    x = 17,565,740,729.46/161,376.39
  6. Step 6: Final answer
    x = 108,849.51

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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.