Home / 159,657.30-220,328.61-88,039.86

Finding the Fourth Proportional to 159,657.30, 220,328.61 and 88,039.86

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Solution

The fourth proportional to 159,657.30, 220,328.61 and 88,039.86 is: 121,495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,657.30 : 220,328.61 = 88,039.86 : x
  2. Step 2: Convert to fraction form
    159,657.30/220,328.61 = 88,039.86/x
  3. Step 3: Cross multiply
    159,657.30x = 220,328.61 × 88,039.86
  4. Step 4: Simplify right side
    159,657.30x = 19,397,699,978.39
  5. Step 5: Solve for x
    x = 19,397,699,978.39/159,657.30
  6. Step 6: Final answer
    x = 121,495.85

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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.