Home / 129,402.41-194,111.78-40,659.44

Finding the Fourth Proportional to 129,402.41, 194,111.78 and 40,659.44

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Solution

The fourth proportional to 129,402.41, 194,111.78 and 40,659.44 is: 60,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,402.41 : 194,111.78 = 40,659.44 : x
  2. Step 2: Convert to fraction form
    129,402.41/194,111.78 = 40,659.44/x
  3. Step 3: Cross multiply
    129,402.41x = 194,111.78 × 40,659.44
  4. Step 4: Simplify right side
    129,402.41x = 7,892,475,098.35
  5. Step 5: Solve for x
    x = 7,892,475,098.35/129,402.41
  6. Step 6: Final answer
    x = 60,991.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.