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Finding the Fourth Proportional to 110,486.88, 152,445.36 and 65,161.20

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Solution

The fourth proportional to 110,486.88, 152,445.36 and 65,161.20 is: 89,906.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,486.88 : 152,445.36 = 65,161.20 : x
  2. Step 2: Convert to fraction form
    110,486.88/152,445.36 = 65,161.20/x
  3. Step 3: Cross multiply
    110,486.88x = 152,445.36 × 65,161.20
  4. Step 4: Simplify right side
    110,486.88x = 9,933,522,592.03
  5. Step 5: Solve for x
    x = 9,933,522,592.03/110,486.88
  6. Step 6: Final answer
    x = 89,906.81

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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.