Home / 126,500.70-174,651.48-78,824.10

Finding the Fourth Proportional to 126,500.70, 174,651.48 and 78,824.10

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Solution

The fourth proportional to 126,500.70, 174,651.48 and 78,824.10 is: 108,827.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,500.70 : 174,651.48 = 78,824.10 : x
  2. Step 2: Convert to fraction form
    126,500.70/174,651.48 = 78,824.10/x
  3. Step 3: Cross multiply
    126,500.70x = 174,651.48 × 78,824.10
  4. Step 4: Simplify right side
    126,500.70x = 13,766,745,724.67
  5. Step 5: Solve for x
    x = 13,766,745,724.67/126,500.70
  6. Step 6: Final answer
    x = 108,827.43

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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.