Home / 129,352.12-194,046.40-40,612.76

Finding the Fourth Proportional to 129,352.12, 194,046.40 and 40,612.76

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Solution

The fourth proportional to 129,352.12, 194,046.40 and 40,612.76 is: 60,924.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,352.12 : 194,046.40 = 40,612.76 : x
  2. Step 2: Convert to fraction form
    129,352.12/194,046.40 = 40,612.76/x
  3. Step 3: Cross multiply
    129,352.12x = 194,046.40 × 40,612.76
  4. Step 4: Simplify right side
    129,352.12x = 7,880,759,872.06
  5. Step 5: Solve for x
    x = 7,880,759,872.06/129,352.12
  6. Step 6: Final answer
    x = 60,924.86

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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.