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Finding the Fourth Proportional to 125,899.36, 188,780.02 and 49,920.95

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Solution

The fourth proportional to 125,899.36, 188,780.02 and 49,920.95 is: 74,854.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,899.36 : 188,780.02 = 49,920.95 : x
  2. Step 2: Convert to fraction form
    125,899.36/188,780.02 = 49,920.95/x
  3. Step 3: Cross multiply
    125,899.36x = 188,780.02 × 49,920.95
  4. Step 4: Simplify right side
    125,899.36x = 9,424,078,286.57
  5. Step 5: Solve for x
    x = 9,424,078,286.57/125,899.36
  6. Step 6: Final answer
    x = 74,854.06

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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.