Home / 122,042.52-182,733.39-86,357.16

Finding the Fourth Proportional to 122,042.52, 182,733.39 and 86,357.16

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Solution

The fourth proportional to 122,042.52, 182,733.39 and 86,357.16 is: 129,301.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,042.52 : 182,733.39 = 86,357.16 : x
  2. Step 2: Convert to fraction form
    122,042.52/182,733.39 = 86,357.16/x
  3. Step 3: Cross multiply
    122,042.52x = 182,733.39 × 86,357.16
  4. Step 4: Simplify right side
    122,042.52x = 15,780,336,597.57
  5. Step 5: Solve for x
    x = 15,780,336,597.57/122,042.52
  6. Step 6: Final answer
    x = 129,301.96

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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.