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Finding the Fourth Proportional to 159,657.80, 220,329.30 and 88,040.36

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Solution

The fourth proportional to 159,657.80, 220,329.30 and 88,040.36 is: 121,496.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,657.80 : 220,329.30 = 88,040.36 : x
  2. Step 2: Convert to fraction form
    159,657.80/220,329.30 = 88,040.36/x
  3. Step 3: Cross multiply
    159,657.80x = 220,329.30 × 88,040.36
  4. Step 4: Simplify right side
    159,657.80x = 19,397,870,890.55
  5. Step 5: Solve for x
    x = 19,397,870,890.55/159,657.80
  6. Step 6: Final answer
    x = 121,496.54

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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.