Home / 215,576.55-297,523.40-123,731.91

Finding the Fourth Proportional to 215,576.55, 297,523.40 and 123,731.91

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Solution

The fourth proportional to 215,576.55, 297,523.40 and 123,731.91 is: 170,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,576.55 : 297,523.40 = 123,731.91 : x
  2. Step 2: Convert to fraction form
    215,576.55/297,523.40 = 123,731.91/x
  3. Step 3: Cross multiply
    215,576.55x = 297,523.40 × 123,731.91
  4. Step 4: Simplify right side
    215,576.55x = 36,813,137,933.03
  5. Step 5: Solve for x
    x = 36,813,137,933.03/215,576.55
  6. Step 6: Final answer
    x = 170,765.97

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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.