Home / 128,197.68-192,175.56-45,046.32

Finding the Fourth Proportional to 128,197.68, 192,175.56 and 45,046.32

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Solution

The fourth proportional to 128,197.68, 192,175.56 and 45,046.32 is: 67,526.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,197.68 : 192,175.56 = 45,046.32 : x
  2. Step 2: Convert to fraction form
    128,197.68/192,175.56 = 45,046.32/x
  3. Step 3: Cross multiply
    128,197.68x = 192,175.56 × 45,046.32
  4. Step 4: Simplify right side
    128,197.68x = 8,656,801,771.94
  5. Step 5: Solve for x
    x = 8,656,801,771.94/128,197.68
  6. Step 6: Final answer
    x = 67,526.98

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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.