Home / 101,868.31-140,571.23-56,542.73

Finding the Fourth Proportional to 101,868.31, 140,571.23 and 56,542.73

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Solution

The fourth proportional to 101,868.31, 140,571.23 and 56,542.73 is: 78,025.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,868.31 : 140,571.23 = 56,542.73 : x
  2. Step 2: Convert to fraction form
    101,868.31/140,571.23 = 56,542.73/x
  3. Step 3: Cross multiply
    101,868.31x = 140,571.23 × 56,542.73
  4. Step 4: Simplify right side
    101,868.31x = 7,948,281,103.66
  5. Step 5: Solve for x
    x = 7,948,281,103.66/101,868.31
  6. Step 6: Final answer
    x = 78,025.06

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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.