Home / 159,821.20-220,557.72-88,206.76

Finding the Fourth Proportional to 159,821.20, 220,557.72 and 88,206.76

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Solution

The fourth proportional to 159,821.20, 220,557.72 and 88,206.76 is: 121,727.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,821.20 : 220,557.72 = 88,206.76 : x
  2. Step 2: Convert to fraction form
    159,821.20/220,557.72 = 88,206.76/x
  3. Step 3: Cross multiply
    159,821.20x = 220,557.72 × 88,206.76
  4. Step 4: Simplify right side
    159,821.20x = 19,454,681,874.19
  5. Step 5: Solve for x
    x = 19,454,681,874.19/159,821.20
  6. Step 6: Final answer
    x = 121,727.79

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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.