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Finding the Fourth Proportional to 159,879.05, 220,627.30 and 88,257.53

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Solution

The fourth proportional to 159,879.05, 220,627.30 and 88,257.53 is: 121,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,879.05 : 220,627.30 = 88,257.53 : x
  2. Step 2: Convert to fraction form
    159,879.05/220,627.30 = 88,257.53/x
  3. Step 3: Cross multiply
    159,879.05x = 220,627.30 × 88,257.53
  4. Step 4: Simplify right side
    159,879.05x = 19,472,020,327.93
  5. Step 5: Solve for x
    x = 19,472,020,327.93/159,879.05
  6. Step 6: Final answer
    x = 121,792.20

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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.