Home / 127,805.43-176,372.20-74,122.28

Finding the Fourth Proportional to 127,805.43, 176,372.20 and 74,122.28

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Solution

The fourth proportional to 127,805.43, 176,372.20 and 74,122.28 is: 102,289.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,805.43 : 176,372.20 = 74,122.28 : x
  2. Step 2: Convert to fraction form
    127,805.43/176,372.20 = 74,122.28/x
  3. Step 3: Cross multiply
    127,805.43x = 176,372.20 × 74,122.28
  4. Step 4: Simplify right side
    127,805.43x = 13,073,109,592.62
  5. Step 5: Solve for x
    x = 13,073,109,592.62/127,805.43
  6. Step 6: Final answer
    x = 102,289.16

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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.