Home / 159,489.23-220,095.35-86,891.76

Finding the Fourth Proportional to 159,489.23, 220,095.35 and 86,891.76

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Solution

The fourth proportional to 159,489.23, 220,095.35 and 86,891.76 is: 119,910.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,489.23 : 220,095.35 = 86,891.76 : x
  2. Step 2: Convert to fraction form
    159,489.23/220,095.35 = 86,891.76/x
  3. Step 3: Cross multiply
    159,489.23x = 220,095.35 × 86,891.76
  4. Step 4: Simplify right side
    159,489.23x = 19,124,471,894.86
  5. Step 5: Solve for x
    x = 19,124,471,894.86/159,489.23
  6. Step 6: Final answer
    x = 119,910.75

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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.