Home / 141,856.23-195,761.55-78,195.09

Finding the Fourth Proportional to 141,856.23, 195,761.55 and 78,195.09

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Solution

The fourth proportional to 141,856.23, 195,761.55 and 78,195.09 is: 107,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,856.23 : 195,761.55 = 78,195.09 : x
  2. Step 2: Convert to fraction form
    141,856.23/195,761.55 = 78,195.09/x
  3. Step 3: Cross multiply
    141,856.23x = 195,761.55 × 78,195.09
  4. Step 4: Simplify right side
    141,856.23x = 15,307,592,020.79
  5. Step 5: Solve for x
    x = 15,307,592,020.79/141,856.23
  6. Step 6: Final answer
    x = 107,909.20

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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.