Home / 146,725.88-220,088.82-80,129.68

Finding the Fourth Proportional to 146,725.88, 220,088.82 and 80,129.68

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Solution

The fourth proportional to 146,725.88, 220,088.82 and 80,129.68 is: 120,194.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,725.88 : 220,088.82 = 80,129.68 : x
  2. Step 2: Convert to fraction form
    146,725.88/220,088.82 = 80,129.68/x
  3. Step 3: Cross multiply
    146,725.88x = 220,088.82 × 80,129.68
  4. Step 4: Simplify right side
    146,725.88x = 17,635,645,617.73
  5. Step 5: Solve for x
    x = 17,635,645,617.73/146,725.88
  6. Step 6: Final answer
    x = 120,194.51

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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.