Home / 100,832.88-139,143.24-55,502.04

Finding the Fourth Proportional to 100,832.88, 139,143.24 and 55,502.04

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Solution

The fourth proportional to 100,832.88, 139,143.24 and 55,502.04 is: 76,589.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,832.88 : 139,143.24 = 55,502.04 : x
  2. Step 2: Convert to fraction form
    100,832.88/139,143.24 = 55,502.04/x
  3. Step 3: Cross multiply
    100,832.88x = 139,143.24 × 55,502.04
  4. Step 4: Simplify right side
    100,832.88x = 7,722,733,672.21
  5. Step 5: Solve for x
    x = 7,722,733,672.21/100,832.88
  6. Step 6: Final answer
    x = 76,589.44

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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.