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Finding the Fourth Proportional to 161,884.87, 242,768.98 and 68,397.91

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Solution

The fourth proportional to 161,884.87, 242,768.98 and 68,397.91 is: 102,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,884.87 : 242,768.98 = 68,397.91 : x
  2. Step 2: Convert to fraction form
    161,884.87/242,768.98 = 68,397.91/x
  3. Step 3: Cross multiply
    161,884.87x = 242,768.98 × 68,397.91
  4. Step 4: Simplify right side
    161,884.87x = 16,604,890,844.83
  5. Step 5: Solve for x
    x = 16,604,890,844.83/161,884.87
  6. Step 6: Final answer
    x = 102,572.22

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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.