Home / 127,350.88-175,159.92-102,145.12

Finding the Fourth Proportional to 127,350.88, 175,159.92 and 102,145.12

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Solution

The fourth proportional to 127,350.88, 175,159.92 and 102,145.12 is: 140,491.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,350.88 : 175,159.92 = 102,145.12 : x
  2. Step 2: Convert to fraction form
    127,350.88/175,159.92 = 102,145.12/x
  3. Step 3: Cross multiply
    127,350.88x = 175,159.92 × 102,145.12
  4. Step 4: Simplify right side
    127,350.88x = 17,891,731,047.59
  5. Step 5: Solve for x
    x = 17,891,731,047.59/127,350.88
  6. Step 6: Final answer
    x = 140,491.62

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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.