Home / 129,449.79-194,174.69-40,711.05

Finding the Fourth Proportional to 129,449.79, 194,174.69 and 40,711.05

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Solution

The fourth proportional to 129,449.79, 194,174.69 and 40,711.05 is: 61,066.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,449.79 : 194,174.69 = 40,711.05 : x
  2. Step 2: Convert to fraction form
    129,449.79/194,174.69 = 40,711.05/x
  3. Step 3: Cross multiply
    129,449.79x = 194,174.69 × 40,711.05
  4. Step 4: Simplify right side
    129,449.79x = 7,905,055,309.77
  5. Step 5: Solve for x
    x = 7,905,055,309.77/129,449.79
  6. Step 6: Final answer
    x = 61,066.58

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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.