Home / 127,115.28-175,417.52-68,971.14

Finding the Fourth Proportional to 127,115.28, 175,417.52 and 68,971.14

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Solution

The fourth proportional to 127,115.28, 175,417.52 and 68,971.14 is: 95,179.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,115.28 : 175,417.52 = 68,971.14 : x
  2. Step 2: Convert to fraction form
    127,115.28/175,417.52 = 68,971.14/x
  3. Step 3: Cross multiply
    127,115.28x = 175,417.52 × 68,971.14
  4. Step 4: Simplify right side
    127,115.28x = 12,098,745,985.52
  5. Step 5: Solve for x
    x = 12,098,745,985.52/127,115.28
  6. Step 6: Final answer
    x = 95,179.32

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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.