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Finding the Fourth Proportional to 127,862.40, 191,793.60 and 125,675.40

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Solution

The fourth proportional to 127,862.40, 191,793.60 and 125,675.40 is: 188,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,862.40 : 191,793.60 = 125,675.40 : x
  2. Step 2: Convert to fraction form
    127,862.40/191,793.60 = 125,675.40/x
  3. Step 3: Cross multiply
    127,862.40x = 191,793.60 × 125,675.40
  4. Step 4: Simplify right side
    127,862.40x = 24,103,737,397.44
  5. Step 5: Solve for x
    x = 24,103,737,397.44/127,862.40
  6. Step 6: Final answer
    x = 188,513.10

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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.