Home / 129,860.35-194,765.92-45,600.72

Finding the Fourth Proportional to 129,860.35, 194,765.92 and 45,600.72

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Solution

The fourth proportional to 129,860.35, 194,765.92 and 45,600.72 is: 68,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,860.35 : 194,765.92 = 45,600.72 : x
  2. Step 2: Convert to fraction form
    129,860.35/194,765.92 = 45,600.72/x
  3. Step 3: Cross multiply
    129,860.35x = 194,765.92 × 45,600.72
  4. Step 4: Simplify right side
    129,860.35x = 8,881,466,183.46
  5. Step 5: Solve for x
    x = 8,881,466,183.46/129,860.35
  6. Step 6: Final answer
    x = 68,392.44

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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.