Home / 129,530.32-194,046.20-79,464.22

Finding the Fourth Proportional to 129,530.32, 194,046.20 and 79,464.22

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Solution

The fourth proportional to 129,530.32, 194,046.20 and 79,464.22 is: 119,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,530.32 : 194,046.20 = 79,464.22 : x
  2. Step 2: Convert to fraction form
    129,530.32/194,046.20 = 79,464.22/x
  3. Step 3: Cross multiply
    129,530.32x = 194,046.20 × 79,464.22
  4. Step 4: Simplify right side
    129,530.32x = 15,419,729,926.96
  5. Step 5: Solve for x
    x = 15,419,729,926.96/129,530.32
  6. Step 6: Final answer
    x = 119,043.40

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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.