Home / 129,512.22-194,282.25-40,768.38

Finding the Fourth Proportional to 129,512.22, 194,282.25 and 40,768.38

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Solution

The fourth proportional to 129,512.22, 194,282.25 and 40,768.38 is: 61,156.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,512.22 : 194,282.25 = 40,768.38 : x
  2. Step 2: Convert to fraction form
    129,512.22/194,282.25 = 40,768.38/x
  3. Step 3: Cross multiply
    129,512.22x = 194,282.25 × 40,768.38
  4. Step 4: Simplify right side
    129,512.22x = 7,920,572,595.26
  5. Step 5: Solve for x
    x = 7,920,572,595.26/129,512.22
  6. Step 6: Final answer
    x = 61,156.95

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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.