Home / 158,446.50-218,654.92-86,826.36

Finding the Fourth Proportional to 158,446.50, 218,654.92 and 86,826.36

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Solution

The fourth proportional to 158,446.50, 218,654.92 and 86,826.36 is: 119,819.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,446.50 : 218,654.92 = 86,826.36 : x
  2. Step 2: Convert to fraction form
    158,446.50/218,654.92 = 86,826.36/x
  3. Step 3: Cross multiply
    158,446.50x = 218,654.92 × 86,826.36
  4. Step 4: Simplify right side
    158,446.50x = 18,985,010,799.69
  5. Step 5: Solve for x
    x = 18,985,010,799.69/158,446.50
  6. Step 6: Final answer
    x = 119,819.69

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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.