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Finding the Fourth Proportional to 125,929.80, 188,894.70 and 109,527.30

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Solution

The fourth proportional to 125,929.80, 188,894.70 and 109,527.30 is: 164,290.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,929.80 : 188,894.70 = 109,527.30 : x
  2. Step 2: Convert to fraction form
    125,929.80/188,894.70 = 109,527.30/x
  3. Step 3: Cross multiply
    125,929.80x = 188,894.70 × 109,527.30
  4. Step 4: Simplify right side
    125,929.80x = 20,689,126,475.31
  5. Step 5: Solve for x
    x = 20,689,126,475.31/125,929.80
  6. Step 6: Final answer
    x = 164,290.95

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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.