Home / 127,731.70-176,272.86-71,144.02

Finding the Fourth Proportional to 127,731.70, 176,272.86 and 71,144.02

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Solution

The fourth proportional to 127,731.70, 176,272.86 and 71,144.02 is: 98,180.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,731.70 : 176,272.86 = 71,144.02 : x
  2. Step 2: Convert to fraction form
    127,731.70/176,272.86 = 71,144.02/x
  3. Step 3: Cross multiply
    127,731.70x = 176,272.86 × 71,144.02
  4. Step 4: Simplify right side
    127,731.70x = 12,540,759,877.30
  5. Step 5: Solve for x
    x = 12,540,759,877.30/127,731.70
  6. Step 6: Final answer
    x = 98,180.48

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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.