Home / 128,067.43-192,098.45-42,684.47

Finding the Fourth Proportional to 128,067.43, 192,098.45 and 42,684.47

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Solution

The fourth proportional to 128,067.43, 192,098.45 and 42,684.47 is: 64,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,067.43 : 192,098.45 = 42,684.47 : x
  2. Step 2: Convert to fraction form
    128,067.43/192,098.45 = 42,684.47/x
  3. Step 3: Cross multiply
    128,067.43x = 192,098.45 × 42,684.47
  4. Step 4: Simplify right side
    128,067.43x = 8,199,619,352.16
  5. Step 5: Solve for x
    x = 8,199,619,352.16/128,067.43
  6. Step 6: Final answer
    x = 64,025.80

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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.