Home / 159,621.50-220,287.60-88,001.42

Finding the Fourth Proportional to 159,621.50, 220,287.60 and 88,001.42

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Solution

The fourth proportional to 159,621.50, 220,287.60 and 88,001.42 is: 121,447.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,621.50 : 220,287.60 = 88,001.42 : x
  2. Step 2: Convert to fraction form
    159,621.50/220,287.60 = 88,001.42/x
  3. Step 3: Cross multiply
    159,621.50x = 220,287.60 × 88,001.42
  4. Step 4: Simplify right side
    159,621.50x = 19,385,620,506.95
  5. Step 5: Solve for x
    x = 19,385,620,506.95/159,621.50
  6. Step 6: Final answer
    x = 121,447.43

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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.