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Finding the Fourth Proportional to 125,478.27, 188,071.50 and 46,542.15

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Solution

The fourth proportional to 125,478.27, 188,071.50 and 46,542.15 is: 69,759.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,478.27 : 188,071.50 = 46,542.15 : x
  2. Step 2: Convert to fraction form
    125,478.27/188,071.50 = 46,542.15/x
  3. Step 3: Cross multiply
    125,478.27x = 188,071.50 × 46,542.15
  4. Step 4: Simplify right side
    125,478.27x = 8,753,251,963.73
  5. Step 5: Solve for x
    x = 8,753,251,963.73/125,478.27
  6. Step 6: Final answer
    x = 69,759.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.