Home / 159,761.40-220,470.76-88,141.60

Finding the Fourth Proportional to 159,761.40, 220,470.76 and 88,141.60

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Solution

The fourth proportional to 159,761.40, 220,470.76 and 88,141.60 is: 121,635.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,761.40 : 220,470.76 = 88,141.60 : x
  2. Step 2: Convert to fraction form
    159,761.40/220,470.76 = 88,141.60/x
  3. Step 3: Cross multiply
    159,761.40x = 220,470.76 × 88,141.60
  4. Step 4: Simplify right side
    159,761.40x = 19,432,645,539.62
  5. Step 5: Solve for x
    x = 19,432,645,539.62/159,761.40
  6. Step 6: Final answer
    x = 121,635.42

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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.