Home / 129,464.40-194,196.60-76,846.80

Finding the Fourth Proportional to 129,464.40, 194,196.60 and 76,846.80

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Solution

The fourth proportional to 129,464.40, 194,196.60 and 76,846.80 is: 115,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,464.40 : 194,196.60 = 76,846.80 : x
  2. Step 2: Convert to fraction form
    129,464.40/194,196.60 = 76,846.80/x
  3. Step 3: Cross multiply
    129,464.40x = 194,196.60 × 76,846.80
  4. Step 4: Simplify right side
    129,464.40x = 14,923,387,280.88
  5. Step 5: Solve for x
    x = 14,923,387,280.88/129,464.40
  6. Step 6: Final answer
    x = 115,270.20

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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.