Home / 189,907.20-284,959.82-137,747.24

Finding the Fourth Proportional to 189,907.20, 284,959.82 and 137,747.24

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Solution

The fourth proportional to 189,907.20, 284,959.82 and 137,747.24 is: 206,692.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,907.20 : 284,959.82 = 137,747.24 : x
  2. Step 2: Convert to fraction form
    189,907.20/284,959.82 = 137,747.24/x
  3. Step 3: Cross multiply
    189,907.20x = 284,959.82 × 137,747.24
  4. Step 4: Simplify right side
    189,907.20x = 39,252,428,715.90
  5. Step 5: Solve for x
    x = 39,252,428,715.90/189,907.20
  6. Step 6: Final answer
    x = 206,692.68

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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.