Home / 115,538.50-172,807.44-68,040.37

Finding the Fourth Proportional to 115,538.50, 172,807.44 and 68,040.37

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Solution

The fourth proportional to 115,538.50, 172,807.44 and 68,040.37 is: 101,765.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,538.50 : 172,807.44 = 68,040.37 : x
  2. Step 2: Convert to fraction form
    115,538.50/172,807.44 = 68,040.37/x
  3. Step 3: Cross multiply
    115,538.50x = 172,807.44 × 68,040.37
  4. Step 4: Simplify right side
    115,538.50x = 11,757,882,156.35
  5. Step 5: Solve for x
    x = 11,757,882,156.35/115,538.50
  6. Step 6: Final answer
    x = 101,765.92

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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.