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Finding the Fourth Proportional to 149,300.06, 206,060.92 and 85,658.90

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Solution

The fourth proportional to 149,300.06, 206,060.92 and 85,658.90 is: 118,224.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,300.06 : 206,060.92 = 85,658.90 : x
  2. Step 2: Convert to fraction form
    149,300.06/206,060.92 = 85,658.90/x
  3. Step 3: Cross multiply
    149,300.06x = 206,060.92 × 85,658.90
  4. Step 4: Simplify right side
    149,300.06x = 17,650,951,740.19
  5. Step 5: Solve for x
    x = 17,650,951,740.19/149,300.06
  6. Step 6: Final answer
    x = 118,224.68

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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.