Home / 123,623.26-185,586.27-81,538.54

Finding the Fourth Proportional to 123,623.26, 185,586.27 and 81,538.54

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Solution

The fourth proportional to 123,623.26, 185,586.27 and 81,538.54 is: 122,407.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,623.26 : 185,586.27 = 81,538.54 : x
  2. Step 2: Convert to fraction form
    123,623.26/185,586.27 = 81,538.54/x
  3. Step 3: Cross multiply
    123,623.26x = 185,586.27 × 81,538.54
  4. Step 4: Simplify right side
    123,623.26x = 15,132,433,499.85
  5. Step 5: Solve for x
    x = 15,132,433,499.85/123,623.26
  6. Step 6: Final answer
    x = 122,407.66

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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.