Home / 159,940.48-220,724.96-91,979.52

Finding the Fourth Proportional to 159,940.48, 220,724.96 and 91,979.52

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Solution

The fourth proportional to 159,940.48, 220,724.96 and 91,979.52 is: 126,935.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,940.48 : 220,724.96 = 91,979.52 : x
  2. Step 2: Convert to fraction form
    159,940.48/220,724.96 = 91,979.52/x
  3. Step 3: Cross multiply
    159,940.48x = 220,724.96 × 91,979.52
  4. Step 4: Simplify right side
    159,940.48x = 20,302,175,872.82
  5. Step 5: Solve for x
    x = 20,302,175,872.82/159,940.48
  6. Step 6: Final answer
    x = 126,935.82

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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.