Home / 127,182.39-175,512.38-79,463.42

Finding the Fourth Proportional to 127,182.39, 175,512.38 and 79,463.42

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Solution

The fourth proportional to 127,182.39, 175,512.38 and 79,463.42 is: 109,659.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,182.39 : 175,512.38 = 79,463.42 : x
  2. Step 2: Convert to fraction form
    127,182.39/175,512.38 = 79,463.42/x
  3. Step 3: Cross multiply
    127,182.39x = 175,512.38 × 79,463.42
  4. Step 4: Simplify right side
    127,182.39x = 13,946,813,967.14
  5. Step 5: Solve for x
    x = 13,946,813,967.14/127,182.39
  6. Step 6: Final answer
    x = 109,659.95

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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.