Home / 159,721.14-220,404.96-88,101.66

Finding the Fourth Proportional to 159,721.14, 220,404.96 and 88,101.66

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Solution

The fourth proportional to 159,721.14, 220,404.96 and 88,101.66 is: 121,574.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,721.14 : 220,404.96 = 88,101.66 : x
  2. Step 2: Convert to fraction form
    159,721.14/220,404.96 = 88,101.66/x
  3. Step 3: Cross multiply
    159,721.14x = 220,404.96 × 88,101.66
  4. Step 4: Simplify right side
    159,721.14x = 19,418,042,848.23
  5. Step 5: Solve for x
    x = 19,418,042,848.23/159,721.14
  6. Step 6: Final answer
    x = 121,574.66

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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.