Home / 129,777.12-194,618.16-63,197.28

Finding the Fourth Proportional to 129,777.12, 194,618.16 and 63,197.28

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Solution

The fourth proportional to 129,777.12, 194,618.16 and 63,197.28 is: 94,772.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,777.12 : 194,618.16 = 63,197.28 : x
  2. Step 2: Convert to fraction form
    129,777.12/194,618.16 = 63,197.28/x
  3. Step 3: Cross multiply
    129,777.12x = 194,618.16 × 63,197.28
  4. Step 4: Simplify right side
    129,777.12x = 12,299,338,350.60
  5. Step 5: Solve for x
    x = 12,299,338,350.60/129,777.12
  6. Step 6: Final answer
    x = 94,772.78

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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.