Home / 127,876.50-176,469.57-71,291.52

Finding the Fourth Proportional to 127,876.50, 176,469.57 and 71,291.52

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Solution

The fourth proportional to 127,876.50, 176,469.57 and 71,291.52 is: 98,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,876.50 : 176,469.57 = 71,291.52 : x
  2. Step 2: Convert to fraction form
    127,876.50/176,469.57 = 71,291.52/x
  3. Step 3: Cross multiply
    127,876.50x = 176,469.57 × 71,291.52
  4. Step 4: Simplify right side
    127,876.50x = 12,580,783,879.05
  5. Step 5: Solve for x
    x = 12,580,783,879.05/127,876.50
  6. Step 6: Final answer
    x = 98,382.30

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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.