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Finding the Fourth Proportional to 161,350.40, 241,737.60 and 78,060.80

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Solution

The fourth proportional to 161,350.40, 241,737.60 and 78,060.80 is: 116,951.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,350.40 : 241,737.60 = 78,060.80 : x
  2. Step 2: Convert to fraction form
    161,350.40/241,737.60 = 78,060.80/x
  3. Step 3: Cross multiply
    161,350.40x = 241,737.60 × 78,060.80
  4. Step 4: Simplify right side
    161,350.40x = 18,870,230,446.08
  5. Step 5: Solve for x
    x = 18,870,230,446.08/161,350.40
  6. Step 6: Final answer
    x = 116,951.87

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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.