Home / 97,891.20-146,836.80-68,366.70

Finding the Fourth Proportional to 97,891.20, 146,836.80 and 68,366.70

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Solution

The fourth proportional to 97,891.20, 146,836.80 and 68,366.70 is: 102,550.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,891.20 : 146,836.80 = 68,366.70 : x
  2. Step 2: Convert to fraction form
    97,891.20/146,836.80 = 68,366.70/x
  3. Step 3: Cross multiply
    97,891.20x = 146,836.80 × 68,366.70
  4. Step 4: Simplify right side
    97,891.20x = 10,038,747,454.56
  5. Step 5: Solve for x
    x = 10,038,747,454.56/97,891.20
  6. Step 6: Final answer
    x = 102,550.05

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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.