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Finding the Fourth Proportional to 125,685.27, 188,527.95 and 36,938.79

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Solution

The fourth proportional to 125,685.27, 188,527.95 and 36,938.79 is: 55,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,685.27 : 188,527.95 = 36,938.79 : x
  2. Step 2: Convert to fraction form
    125,685.27/188,527.95 = 36,938.79/x
  3. Step 3: Cross multiply
    125,685.27x = 188,527.95 × 36,938.79
  4. Step 4: Simplify right side
    125,685.27x = 6,963,994,354.18
  5. Step 5: Solve for x
    x = 6,963,994,354.18/125,685.27
  6. Step 6: Final answer
    x = 55,408.20

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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.