Home / 141,298.75-194,992.24-77,636.55

Finding the Fourth Proportional to 141,298.75, 194,992.24 and 77,636.55

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Solution

The fourth proportional to 141,298.75, 194,992.24 and 77,636.55 is: 107,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,298.75 : 194,992.24 = 77,636.55 : x
  2. Step 2: Convert to fraction form
    141,298.75/194,992.24 = 77,636.55/x
  3. Step 3: Cross multiply
    141,298.75x = 194,992.24 × 77,636.55
  4. Step 4: Simplify right side
    141,298.75x = 15,138,524,790.37
  5. Step 5: Solve for x
    x = 15,138,524,790.37/141,298.75
  6. Step 6: Final answer
    x = 107,138.42

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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.