Home / 128,177.26-192,265.28-71,224.34

Finding the Fourth Proportional to 128,177.26, 192,265.28 and 71,224.34

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Solution

The fourth proportional to 128,177.26, 192,265.28 and 71,224.34 is: 106,836.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,177.26 : 192,265.28 = 71,224.34 : x
  2. Step 2: Convert to fraction form
    128,177.26/192,265.28 = 71,224.34/x
  3. Step 3: Cross multiply
    128,177.26x = 192,265.28 × 71,224.34
  4. Step 4: Simplify right side
    128,177.26x = 13,693,967,672.92
  5. Step 5: Solve for x
    x = 13,693,967,672.92/128,177.26
  6. Step 6: Final answer
    x = 106,836.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.