Home / 84,432.22-126,481.90-68,655.06

Finding the Fourth Proportional to 84,432.22, 126,481.90 and 68,655.06

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Solution

The fourth proportional to 84,432.22, 126,481.90 and 68,655.06 is: 102,847.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,432.22 : 126,481.90 = 68,655.06 : x
  2. Step 2: Convert to fraction form
    84,432.22/126,481.90 = 68,655.06/x
  3. Step 3: Cross multiply
    84,432.22x = 126,481.90 × 68,655.06
  4. Step 4: Simplify right side
    84,432.22x = 8,683,622,433.41
  5. Step 5: Solve for x
    x = 8,683,622,433.41/84,432.22
  6. Step 6: Final answer
    x = 102,847.26

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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.