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Finding the Fourth Proportional to 136,895.60, 205,324.20 and 43,410.80

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Solution

The fourth proportional to 136,895.60, 205,324.20 and 43,410.80 is: 65,110.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,895.60 : 205,324.20 = 43,410.80 : x
  2. Step 2: Convert to fraction form
    136,895.60/205,324.20 = 43,410.80/x
  3. Step 3: Cross multiply
    136,895.60x = 205,324.20 × 43,410.80
  4. Step 4: Simplify right side
    136,895.60x = 8,913,287,781.36
  5. Step 5: Solve for x
    x = 8,913,287,781.36/136,895.60
  6. Step 6: Final answer
    x = 65,110.11

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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.