Home / 127,605.78-175,801.19-91,733.72

Finding the Fourth Proportional to 127,605.78, 175,801.19 and 91,733.72

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Solution

The fourth proportional to 127,605.78, 175,801.19 and 91,733.72 is: 126,380.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,605.78 : 175,801.19 = 91,733.72 : x
  2. Step 2: Convert to fraction form
    127,605.78/175,801.19 = 91,733.72/x
  3. Step 3: Cross multiply
    127,605.78x = 175,801.19 × 91,733.72
  4. Step 4: Simplify right side
    127,605.78x = 16,126,895,801.45
  5. Step 5: Solve for x
    x = 16,126,895,801.45/127,605.78
  6. Step 6: Final answer
    x = 126,380.61

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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.