Home / 136,877.04-205,321.38-43,380.72

Finding the Fourth Proportional to 136,877.04, 205,321.38 and 43,380.72

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Solution

The fourth proportional to 136,877.04, 205,321.38 and 43,380.72 is: 65,072.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,877.04 : 205,321.38 = 43,380.72 : x
  2. Step 2: Convert to fraction form
    136,877.04/205,321.38 = 43,380.72/x
  3. Step 3: Cross multiply
    136,877.04x = 205,321.38 × 43,380.72
  4. Step 4: Simplify right side
    136,877.04x = 8,906,989,295.79
  5. Step 5: Solve for x
    x = 8,906,989,295.79/136,877.04
  6. Step 6: Final answer
    x = 65,072.92

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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.