Home / 129,558.46-194,441.37-67,246.78

Finding the Fourth Proportional to 129,558.46, 194,441.37 and 67,246.78

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Solution

The fourth proportional to 129,558.46, 194,441.37 and 67,246.78 is: 100,923.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,558.46 : 194,441.37 = 67,246.78 : x
  2. Step 2: Convert to fraction form
    129,558.46/194,441.37 = 67,246.78/x
  3. Step 3: Cross multiply
    129,558.46x = 194,441.37 × 67,246.78
  4. Step 4: Simplify right side
    129,558.46x = 13,075,555,695.05
  5. Step 5: Solve for x
    x = 13,075,555,695.05/129,558.46
  6. Step 6: Final answer
    x = 100,923.98

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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.