Home / 170,803.20-256,304.64-123,371.52

Finding the Fourth Proportional to 170,803.20, 256,304.64 and 123,371.52

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Solution

The fourth proportional to 170,803.20, 256,304.64 and 123,371.52 is: 185,129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,803.20 : 256,304.64 = 123,371.52 : x
  2. Step 2: Convert to fraction form
    170,803.20/256,304.64 = 123,371.52/x
  3. Step 3: Cross multiply
    170,803.20x = 256,304.64 × 123,371.52
  4. Step 4: Simplify right side
    170,803.20x = 31,620,693,019.85
  5. Step 5: Solve for x
    x = 31,620,693,019.85/170,803.20
  6. Step 6: Final answer
    x = 185,129.39

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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.