Home / 125,293.11-172,912.37-68,704.49

Finding the Fourth Proportional to 125,293.11, 172,912.37 and 68,704.49

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Solution

The fourth proportional to 125,293.11, 172,912.37 and 68,704.49 is: 94,816.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,293.11 : 172,912.37 = 68,704.49 : x
  2. Step 2: Convert to fraction form
    125,293.11/172,912.37 = 68,704.49/x
  3. Step 3: Cross multiply
    125,293.11x = 172,912.37 × 68,704.49
  4. Step 4: Simplify right side
    125,293.11x = 11,879,854,987.46
  5. Step 5: Solve for x
    x = 11,879,854,987.46/125,293.11
  6. Step 6: Final answer
    x = 94,816.51

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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.