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Finding the Fourth Proportional to 127,902.90, 191,854.20 and 34,408.64

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Solution

The fourth proportional to 127,902.90, 191,854.20 and 34,408.64 is: 51,612.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,902.90 : 191,854.20 = 34,408.64 : x
  2. Step 2: Convert to fraction form
    127,902.90/191,854.20 = 34,408.64/x
  3. Step 3: Cross multiply
    127,902.90x = 191,854.20 × 34,408.64
  4. Step 4: Simplify right side
    127,902.90x = 6,601,442,100.29
  5. Step 5: Solve for x
    x = 6,601,442,100.29/127,902.90
  6. Step 6: Final answer
    x = 51,612.92

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1.5x scale

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.