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Finding the Fourth Proportional to 123,545.80, 185,318.70 and 109,767.70

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Solution

The fourth proportional to 123,545.80, 185,318.70 and 109,767.70 is: 164,651.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,545.80 : 185,318.70 = 109,767.70 : x
  2. Step 2: Convert to fraction form
    123,545.80/185,318.70 = 109,767.70/x
  3. Step 3: Cross multiply
    123,545.80x = 185,318.70 × 109,767.70
  4. Step 4: Simplify right side
    123,545.80x = 20,342,007,465.99
  5. Step 5: Solve for x
    x = 20,342,007,465.99/123,545.80
  6. Step 6: Final answer
    x = 164,651.55

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1.5x scale

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.