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Finding the Fourth Proportional to 122,191.88, 168,622.04 and 71,201.42

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Solution

The fourth proportional to 122,191.88, 168,622.04 and 71,201.42 is: 98,256.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,191.88 : 168,622.04 = 71,201.42 : x
  2. Step 2: Convert to fraction form
    122,191.88/168,622.04 = 71,201.42/x
  3. Step 3: Cross multiply
    122,191.88x = 168,622.04 × 71,201.42
  4. Step 4: Simplify right side
    122,191.88x = 12,006,128,691.30
  5. Step 5: Solve for x
    x = 12,006,128,691.30/122,191.88
  6. Step 6: Final answer
    x = 98,256.35

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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.