Home / 159,517.80-220,144.23-87,897.74

Finding the Fourth Proportional to 159,517.80, 220,144.23 and 87,897.74

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Solution

The fourth proportional to 159,517.80, 220,144.23 and 87,897.74 is: 121,304.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,517.80 : 220,144.23 = 87,897.74 : x
  2. Step 2: Convert to fraction form
    159,517.80/220,144.23 = 87,897.74/x
  3. Step 3: Cross multiply
    159,517.80x = 220,144.23 × 87,897.74
  4. Step 4: Simplify right side
    159,517.80x = 19,350,179,190.32
  5. Step 5: Solve for x
    x = 19,350,179,190.32/159,517.80
  6. Step 6: Final answer
    x = 121,304.20

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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.