Home / 149,689.60-206,571.52-82,621.44

Finding the Fourth Proportional to 149,689.60, 206,571.52 and 82,621.44

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Solution

The fourth proportional to 149,689.60, 206,571.52 and 82,621.44 is: 114,017.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,689.60 : 206,571.52 = 82,621.44 : x
  2. Step 2: Convert to fraction form
    149,689.60/206,571.52 = 82,621.44/x
  3. Step 3: Cross multiply
    149,689.60x = 206,571.52 × 82,621.44
  4. Step 4: Simplify right side
    149,689.60x = 17,067,236,445.39
  5. Step 5: Solve for x
    x = 17,067,236,445.39/149,689.60
  6. Step 6: Final answer
    x = 114,017.52

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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.