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Finding the Fourth Proportional to 136,863.60, 205,003.80 and 110,619.60

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Solution

The fourth proportional to 136,863.60, 205,003.80 and 110,619.60 is: 165,693.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,863.60 : 205,003.80 = 110,619.60 : x
  2. Step 2: Convert to fraction form
    136,863.60/205,003.80 = 110,619.60/x
  3. Step 3: Cross multiply
    136,863.60x = 205,003.80 × 110,619.60
  4. Step 4: Simplify right side
    136,863.60x = 22,677,438,354.48
  5. Step 5: Solve for x
    x = 22,677,438,354.48/136,863.60
  6. Step 6: Final answer
    x = 165,693.72

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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.