Home / 159,534.29-220,154.49-86,937.83

Finding the Fourth Proportional to 159,534.29, 220,154.49 and 86,937.83

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Solution

The fourth proportional to 159,534.29, 220,154.49 and 86,937.83 is: 119,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,534.29 : 220,154.49 = 86,937.83 : x
  2. Step 2: Convert to fraction form
    159,534.29/220,154.49 = 86,937.83/x
  3. Step 3: Cross multiply
    159,534.29x = 220,154.49 × 86,937.83
  4. Step 4: Simplify right side
    159,534.29x = 19,139,752,524.58
  5. Step 5: Solve for x
    x = 19,139,752,524.58/159,534.29
  6. Step 6: Final answer
    x = 119,972.66

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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.