Home / 159,825.25-220,561.89-88,203.74

Finding the Fourth Proportional to 159,825.25, 220,561.89 and 88,203.74

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Solution

The fourth proportional to 159,825.25, 220,561.89 and 88,203.74 is: 121,722.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,825.25 : 220,561.89 = 88,203.74 : x
  2. Step 2: Convert to fraction form
    159,825.25/220,561.89 = 88,203.74/x
  3. Step 3: Cross multiply
    159,825.25x = 220,561.89 × 88,203.74
  4. Step 4: Simplify right side
    159,825.25x = 19,454,382,165.90
  5. Step 5: Solve for x
    x = 19,454,382,165.90/159,825.25
  6. Step 6: Final answer
    x = 121,722.83

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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.