Home / 129,105.59-193,680.24-40,341.63

Finding the Fourth Proportional to 129,105.59, 193,680.24 and 40,341.63

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Solution

The fourth proportional to 129,105.59, 193,680.24 and 40,341.63 is: 60,519.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,105.59 : 193,680.24 = 40,341.63 : x
  2. Step 2: Convert to fraction form
    129,105.59/193,680.24 = 40,341.63/x
  3. Step 3: Cross multiply
    129,105.59x = 193,680.24 × 40,341.63
  4. Step 4: Simplify right side
    129,105.59x = 7,813,376,580.39
  5. Step 5: Solve for x
    x = 7,813,376,580.39/129,105.59
  6. Step 6: Final answer
    x = 60,519.28

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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.