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Finding the Fourth Proportional to 181,255.18, 250,128.66 and 100,679.08

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Solution

The fourth proportional to 181,255.18, 250,128.66 and 100,679.08 is: 138,935.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,255.18 : 250,128.66 = 100,679.08 : x
  2. Step 2: Convert to fraction form
    181,255.18/250,128.66 = 100,679.08/x
  3. Step 3: Cross multiply
    181,255.18x = 250,128.66 × 100,679.08
  4. Step 4: Simplify right side
    181,255.18x = 25,182,723,370.43
  5. Step 5: Solve for x
    x = 25,182,723,370.43/181,255.18
  6. Step 6: Final answer
    x = 138,935.19

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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.