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Finding the Fourth Proportional to 149,592.60, 206,417.36 and 85,930.39

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Solution

The fourth proportional to 149,592.60, 206,417.36 and 85,930.39 is: 118,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,592.60 : 206,417.36 = 85,930.39 : x
  2. Step 2: Convert to fraction form
    149,592.60/206,417.36 = 85,930.39/x
  3. Step 3: Cross multiply
    149,592.60x = 206,417.36 × 85,930.39
  4. Step 4: Simplify right side
    149,592.60x = 17,737,524,247.57
  5. Step 5: Solve for x
    x = 17,737,524,247.57/149,592.60
  6. Step 6: Final answer
    x = 118,572.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.