Home / 84,728.20-126,891.90-73,574.26

Finding the Fourth Proportional to 84,728.20, 126,891.90 and 73,574.26

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Solution

The fourth proportional to 84,728.20, 126,891.90 and 73,574.26 is: 110,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,728.20 : 126,891.90 = 73,574.26 : x
  2. Step 2: Convert to fraction form
    84,728.20/126,891.90 = 73,574.26/x
  3. Step 3: Cross multiply
    84,728.20x = 126,891.90 × 73,574.26
  4. Step 4: Simplify right side
    84,728.20x = 9,335,977,642.49
  5. Step 5: Solve for x
    x = 9,335,977,642.49/84,728.20
  6. Step 6: Final answer
    x = 110,187.37

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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.