Home / 132,123.90-198,574.65-115,016.70

Finding the Fourth Proportional to 132,123.90, 198,574.65 and 115,016.70

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Solution

The fourth proportional to 132,123.90, 198,574.65 and 115,016.70 is: 172,863.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,123.90 : 198,574.65 = 115,016.70 : x
  2. Step 2: Convert to fraction form
    132,123.90/198,574.65 = 115,016.70/x
  3. Step 3: Cross multiply
    132,123.90x = 198,574.65 × 115,016.70
  4. Step 4: Simplify right side
    132,123.90x = 22,839,400,946.66
  5. Step 5: Solve for x
    x = 22,839,400,946.66/132,123.90
  6. Step 6: Final answer
    x = 172,863.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.