Home / 148,723.24-205,238.82-85,063.72

Finding the Fourth Proportional to 148,723.24, 205,238.82 and 85,063.72

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Solution

The fourth proportional to 148,723.24, 205,238.82 and 85,063.72 is: 117,388.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,723.24 : 205,238.82 = 85,063.72 : x
  2. Step 2: Convert to fraction form
    148,723.24/205,238.82 = 85,063.72/x
  3. Step 3: Cross multiply
    148,723.24x = 205,238.82 × 85,063.72
  4. Step 4: Simplify right side
    148,723.24x = 17,458,377,517.61
  5. Step 5: Solve for x
    x = 17,458,377,517.61/148,723.24
  6. Step 6: Final answer
    x = 117,388.36

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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.