Home / 101,865.80-140,633.34-67,865.24

Finding the Fourth Proportional to 101,865.80, 140,633.34 and 67,865.24

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Solution

The fourth proportional to 101,865.80, 140,633.34 and 67,865.24 is: 93,693.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,865.80 : 140,633.34 = 67,865.24 : x
  2. Step 2: Convert to fraction form
    101,865.80/140,633.34 = 67,865.24/x
  3. Step 3: Cross multiply
    101,865.80x = 140,633.34 × 67,865.24
  4. Step 4: Simplify right side
    101,865.80x = 9,544,115,371.10
  5. Step 5: Solve for x
    x = 9,544,115,371.10/101,865.80
  6. Step 6: Final answer
    x = 93,693.03

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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.