Home / 128,287.80-192,431.16-34,793.52

Finding the Fourth Proportional to 128,287.80, 192,431.16 and 34,793.52

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Solution

The fourth proportional to 128,287.80, 192,431.16 and 34,793.52 is: 52,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,287.80 : 192,431.16 = 34,793.52 : x
  2. Step 2: Convert to fraction form
    128,287.80/192,431.16 = 34,793.52/x
  3. Step 3: Cross multiply
    128,287.80x = 192,431.16 × 34,793.52
  4. Step 4: Simplify right side
    128,287.80x = 6,695,357,414.08
  5. Step 5: Solve for x
    x = 6,695,357,414.08/128,287.80
  6. Step 6: Final answer
    x = 52,190.13

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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.