Home / 129,371.60-194,065.63-40,628.61

Finding the Fourth Proportional to 129,371.60, 194,065.63 and 40,628.61

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Solution

The fourth proportional to 129,371.60, 194,065.63 and 40,628.61 is: 60,945.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,371.60 : 194,065.63 = 40,628.61 : x
  2. Step 2: Convert to fraction form
    129,371.60/194,065.63 = 40,628.61/x
  3. Step 3: Cross multiply
    129,371.60x = 194,065.63 × 40,628.61
  4. Step 4: Simplify right side
    129,371.60x = 7,884,616,694.10
  5. Step 5: Solve for x
    x = 7,884,616,694.10/129,371.60
  6. Step 6: Final answer
    x = 60,945.50

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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.