Home / 120,422.28-166,175.63-65,963.62

Finding the Fourth Proportional to 120,422.28, 166,175.63 and 65,963.62

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Solution

The fourth proportional to 120,422.28, 166,175.63 and 65,963.62 is: 91,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,422.28 : 166,175.63 = 65,963.62 : x
  2. Step 2: Convert to fraction form
    120,422.28/166,175.63 = 65,963.62/x
  3. Step 3: Cross multiply
    120,422.28x = 166,175.63 × 65,963.62
  4. Step 4: Simplify right side
    120,422.28x = 10,961,545,279.70
  5. Step 5: Solve for x
    x = 10,961,545,279.70/120,422.28
  6. Step 6: Final answer
    x = 91,025.89

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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.