Home / 141,149.18-194,785.08-76,619.72

Finding the Fourth Proportional to 141,149.18, 194,785.08 and 76,619.72

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Solution

The fourth proportional to 141,149.18, 194,785.08 and 76,619.72 is: 105,734.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,149.18 : 194,785.08 = 76,619.72 : x
  2. Step 2: Convert to fraction form
    141,149.18/194,785.08 = 76,619.72/x
  3. Step 3: Cross multiply
    141,149.18x = 194,785.08 × 76,619.72
  4. Step 4: Simplify right side
    141,149.18x = 14,924,378,289.78
  5. Step 5: Solve for x
    x = 14,924,378,289.78/141,149.18
  6. Step 6: Final answer
    x = 105,734.79

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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.