Home / 136,076.31-187,876.95-121,691.52

Finding the Fourth Proportional to 136,076.31, 187,876.95 and 121,691.52

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Solution

The fourth proportional to 136,076.31, 187,876.95 and 121,691.52 is: 168,016.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,076.31 : 187,876.95 = 121,691.52 : x
  2. Step 2: Convert to fraction form
    136,076.31/187,876.95 = 121,691.52/x
  3. Step 3: Cross multiply
    136,076.31x = 187,876.95 × 121,691.52
  4. Step 4: Simplify right side
    136,076.31x = 22,863,031,618.46
  5. Step 5: Solve for x
    x = 22,863,031,618.46/136,076.31
  6. Step 6: Final answer
    x = 168,016.25

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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.