Home / 131,865.22-181,959.42-74,498.41

Finding the Fourth Proportional to 131,865.22, 181,959.42 and 74,498.41

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Solution

The fourth proportional to 131,865.22, 181,959.42 and 74,498.41 is: 102,799.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,865.22 : 181,959.42 = 74,498.41 : x
  2. Step 2: Convert to fraction form
    131,865.22/181,959.42 = 74,498.41/x
  3. Step 3: Cross multiply
    131,865.22x = 181,959.42 × 74,498.41
  4. Step 4: Simplify right side
    131,865.22x = 13,555,687,474.52
  5. Step 5: Solve for x
    x = 13,555,687,474.52/131,865.22
  6. Step 6: Final answer
    x = 102,799.57

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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.