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Finding the Fourth Proportional to 159,862.80, 220,610.70 and 88,242.86

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Solution

The fourth proportional to 159,862.80, 220,610.70 and 88,242.86 is: 121,775.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,862.80 : 220,610.70 = 88,242.86 : x
  2. Step 2: Convert to fraction form
    159,862.80/220,610.70 = 88,242.86/x
  3. Step 3: Cross multiply
    159,862.80x = 220,610.70 × 88,242.86
  4. Step 4: Simplify right side
    159,862.80x = 19,467,319,114.60
  5. Step 5: Solve for x
    x = 19,467,319,114.60/159,862.80
  6. Step 6: Final answer
    x = 121,775.17

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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.