Home / 84,198.72-126,210.24-34,258.80

Finding the Fourth Proportional to 84,198.72, 126,210.24 and 34,258.80

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Solution

The fourth proportional to 84,198.72, 126,210.24 and 34,258.80 is: 51,352.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,198.72 : 126,210.24 = 34,258.80 : x
  2. Step 2: Convert to fraction form
    84,198.72/126,210.24 = 34,258.80/x
  3. Step 3: Cross multiply
    84,198.72x = 126,210.24 × 34,258.80
  4. Step 4: Simplify right side
    84,198.72x = 4,323,811,370.11
  5. Step 5: Solve for x
    x = 4,323,811,370.11/84,198.72
  6. Step 6: Final answer
    x = 51,352.46

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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.