Home / 140,899.88-194,455.28-80,479.55

Finding the Fourth Proportional to 140,899.88, 194,455.28 and 80,479.55

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Solution

The fourth proportional to 140,899.88, 194,455.28 and 80,479.55 is: 111,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,899.88 : 194,455.28 = 80,479.55 : x
  2. Step 2: Convert to fraction form
    140,899.88/194,455.28 = 80,479.55/x
  3. Step 3: Cross multiply
    140,899.88x = 194,455.28 × 80,479.55
  4. Step 4: Simplify right side
    140,899.88x = 15,649,672,054.85
  5. Step 5: Solve for x
    x = 15,649,672,054.85/140,899.88
  6. Step 6: Final answer
    x = 111,069.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.