Home / 127,418.88-175,253.52-102,213.12

Finding the Fourth Proportional to 127,418.88, 175,253.52 and 102,213.12

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Solution

The fourth proportional to 127,418.88, 175,253.52 and 102,213.12 is: 140,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,418.88 : 175,253.52 = 102,213.12 : x
  2. Step 2: Convert to fraction form
    127,418.88/175,253.52 = 102,213.12/x
  3. Step 3: Cross multiply
    127,418.88x = 175,253.52 × 102,213.12
  4. Step 4: Simplify right side
    127,418.88x = 17,913,209,070.18
  5. Step 5: Solve for x
    x = 17,913,209,070.18/127,418.88
  6. Step 6: Final answer
    x = 140,585.20

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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.