Home / 139,257.28-192,175.29-75,595.12

Finding the Fourth Proportional to 139,257.28, 192,175.29 and 75,595.12

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Solution

The fourth proportional to 139,257.28, 192,175.29 and 75,595.12 is: 104,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,257.28 : 192,175.29 = 75,595.12 : x
  2. Step 2: Convert to fraction form
    139,257.28/192,175.29 = 75,595.12/x
  3. Step 3: Cross multiply
    139,257.28x = 192,175.29 × 75,595.12
  4. Step 4: Simplify right side
    139,257.28x = 14,527,514,108.58
  5. Step 5: Solve for x
    x = 14,527,514,108.58/139,257.28
  6. Step 6: Final answer
    x = 104,321.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.