Home / 129,464.12-194,197.46-40,715.64

Finding the Fourth Proportional to 129,464.12, 194,197.46 and 40,715.64

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Solution

The fourth proportional to 129,464.12, 194,197.46 and 40,715.64 is: 61,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,464.12 : 194,197.46 = 40,715.64 : x
  2. Step 2: Convert to fraction form
    129,464.12/194,197.46 = 40,715.64/x
  3. Step 3: Cross multiply
    129,464.12x = 194,197.46 × 40,715.64
  4. Step 4: Simplify right side
    129,464.12x = 7,906,873,870.27
  5. Step 5: Solve for x
    x = 7,906,873,870.27/129,464.12
  6. Step 6: Final answer
    x = 61,073.86

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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.