Home / 129,559.28-194,299.72-45,303.74

Finding the Fourth Proportional to 129,559.28, 194,299.72 and 45,303.74

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Solution

The fourth proportional to 129,559.28, 194,299.72 and 45,303.74 is: 67,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,559.28 : 194,299.72 = 45,303.74 : x
  2. Step 2: Convert to fraction form
    129,559.28/194,299.72 = 45,303.74/x
  3. Step 3: Cross multiply
    129,559.28x = 194,299.72 × 45,303.74
  4. Step 4: Simplify right side
    129,559.28x = 8,802,503,996.95
  5. Step 5: Solve for x
    x = 8,802,503,996.95/129,559.28
  6. Step 6: Final answer
    x = 67,941.90

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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.