Home / 127,720.23-176,253.92-71,131.60

Finding the Fourth Proportional to 127,720.23, 176,253.92 and 71,131.60

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Solution

The fourth proportional to 127,720.23, 176,253.92 and 71,131.60 is: 98,161.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,720.23 : 176,253.92 = 71,131.60 : x
  2. Step 2: Convert to fraction form
    127,720.23/176,253.92 = 71,131.60/x
  3. Step 3: Cross multiply
    127,720.23x = 176,253.92 × 71,131.60
  4. Step 4: Simplify right side
    127,720.23x = 12,537,223,335.87
  5. Step 5: Solve for x
    x = 12,537,223,335.87/127,720.23
  6. Step 6: Final answer
    x = 98,161.61

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1.5x scale

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.