Home / 141,138.20-194,769.89-76,608.71

Finding the Fourth Proportional to 141,138.20, 194,769.89 and 76,608.71

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Solution

The fourth proportional to 141,138.20, 194,769.89 and 76,608.71 is: 105,719.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,138.20 : 194,769.89 = 76,608.71 : x
  2. Step 2: Convert to fraction form
    141,138.20/194,769.89 = 76,608.71/x
  3. Step 3: Cross multiply
    141,138.20x = 194,769.89 × 76,608.71
  4. Step 4: Simplify right side
    141,138.20x = 14,921,070,443.77
  5. Step 5: Solve for x
    x = 14,921,070,443.77/141,138.20
  6. Step 6: Final answer
    x = 105,719.58

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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.