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Finding the Fourth Proportional to 159,898.23, 220,659.89 and 88,278.39

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Solution

The fourth proportional to 159,898.23, 220,659.89 and 88,278.39 is: 121,824.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,898.23 : 220,659.89 = 88,278.39 : x
  2. Step 2: Convert to fraction form
    159,898.23/220,659.89 = 88,278.39/x
  3. Step 3: Cross multiply
    159,898.23x = 220,659.89 × 88,278.39
  4. Step 4: Simplify right side
    159,898.23x = 19,479,499,385.39
  5. Step 5: Solve for x
    x = 19,479,499,385.39/159,898.23
  6. Step 6: Final answer
    x = 121,824.36

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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.