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Finding the Fourth Proportional to 128,540.88, 192,560.22 and 88,552.80

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Solution

The fourth proportional to 128,540.88, 192,560.22 and 88,552.80 is: 132,656.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,540.88 : 192,560.22 = 88,552.80 : x
  2. Step 2: Convert to fraction form
    128,540.88/192,560.22 = 88,552.80/x
  3. Step 3: Cross multiply
    128,540.88x = 192,560.22 × 88,552.80
  4. Step 4: Simplify right side
    128,540.88x = 17,051,746,649.62
  5. Step 5: Solve for x
    x = 17,051,746,649.62/128,540.88
  6. Step 6: Final answer
    x = 132,656.22

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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.