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Finding the Fourth Proportional to 159,650.75, 220,310.13 and 90,731.24

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Solution

The fourth proportional to 159,650.75, 220,310.13 and 90,731.24 is: 125,204.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,650.75 : 220,310.13 = 90,731.24 : x
  2. Step 2: Convert to fraction form
    159,650.75/220,310.13 = 90,731.24/x
  3. Step 3: Cross multiply
    159,650.75x = 220,310.13 × 90,731.24
  4. Step 4: Simplify right side
    159,650.75x = 19,989,010,833.95
  5. Step 5: Solve for x
    x = 19,989,010,833.95/159,650.75
  6. Step 6: Final answer
    x = 125,204.62

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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.