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Finding the Fourth Proportional to 159,651.30, 220,320.33 and 88,033.86

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Solution

The fourth proportional to 159,651.30, 220,320.33 and 88,033.86 is: 121,487.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,651.30 : 220,320.33 = 88,033.86 : x
  2. Step 2: Convert to fraction form
    159,651.30/220,320.33 = 88,033.86/x
  3. Step 3: Cross multiply
    159,651.30x = 220,320.33 × 88,033.86
  4. Step 4: Simplify right side
    159,651.30x = 19,395,649,086.37
  5. Step 5: Solve for x
    x = 19,395,649,086.37/159,651.30
  6. Step 6: Final answer
    x = 121,487.57

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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.