Home / 129,810.30-194,715.45-73,628.70

Finding the Fourth Proportional to 129,810.30, 194,715.45 and 73,628.70

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Solution

The fourth proportional to 129,810.30, 194,715.45 and 73,628.70 is: 110,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,810.30 : 194,715.45 = 73,628.70 : x
  2. Step 2: Convert to fraction form
    129,810.30/194,715.45 = 73,628.70/x
  3. Step 3: Cross multiply
    129,810.30x = 194,715.45 × 73,628.70
  4. Step 4: Simplify right side
    129,810.30x = 14,336,645,453.42
  5. Step 5: Solve for x
    x = 14,336,645,453.42/129,810.30
  6. Step 6: Final answer
    x = 110,443.05

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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.