Home / 217,311.54-325,778.88-84,100.10

Finding the Fourth Proportional to 217,311.54, 325,778.88 and 84,100.10

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Solution

The fourth proportional to 217,311.54, 325,778.88 and 84,100.10 is: 126,077.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,311.54 : 325,778.88 = 84,100.10 : x
  2. Step 2: Convert to fraction form
    217,311.54/325,778.88 = 84,100.10/x
  3. Step 3: Cross multiply
    217,311.54x = 325,778.88 × 84,100.10
  4. Step 4: Simplify right side
    217,311.54x = 27,398,036,385.89
  5. Step 5: Solve for x
    x = 27,398,036,385.89/217,311.54
  6. Step 6: Final answer
    x = 126,077.23

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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.