Home / 141,243.20-194,917.02-76,713.70

Finding the Fourth Proportional to 141,243.20, 194,917.02 and 76,713.70

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Solution

The fourth proportional to 141,243.20, 194,917.02 and 76,713.70 is: 105,865.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,243.20 : 194,917.02 = 76,713.70 : x
  2. Step 2: Convert to fraction form
    141,243.20/194,917.02 = 76,713.70/x
  3. Step 3: Cross multiply
    141,243.20x = 194,917.02 × 76,713.70
  4. Step 4: Simplify right side
    141,243.20x = 14,952,805,797.17
  5. Step 5: Solve for x
    x = 14,952,805,797.17/141,243.20
  6. Step 6: Final answer
    x = 105,865.67

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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.