Home / 134,612.92-185,759.18-78,042.68

Finding the Fourth Proportional to 134,612.92, 185,759.18 and 78,042.68

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Solution

The fourth proportional to 134,612.92, 185,759.18 and 78,042.68 is: 107,695.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,612.92 : 185,759.18 = 78,042.68 : x
  2. Step 2: Convert to fraction form
    134,612.92/185,759.18 = 78,042.68/x
  3. Step 3: Cross multiply
    134,612.92x = 185,759.18 × 78,042.68
  4. Step 4: Simplify right side
    134,612.92x = 14,497,144,241.80
  5. Step 5: Solve for x
    x = 14,497,144,241.80/134,612.92
  6. Step 6: Final answer
    x = 107,695.04

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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.