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Finding the Fourth Proportional to 185,404.93, 255,859.10 and 100,522.21

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Solution

The fourth proportional to 185,404.93, 255,859.10 and 100,522.21 is: 138,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,404.93 : 255,859.10 = 100,522.21 : x
  2. Step 2: Convert to fraction form
    185,404.93/255,859.10 = 100,522.21/x
  3. Step 3: Cross multiply
    185,404.93x = 255,859.10 × 100,522.21
  4. Step 4: Simplify right side
    185,404.93x = 25,719,522,180.61
  5. Step 5: Solve for x
    x = 25,719,522,180.61/185,404.93
  6. Step 6: Final answer
    x = 138,720.81

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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.