Home / 215,579.15-297,505.97-123,715.24

Finding the Fourth Proportional to 215,579.15, 297,505.97 and 123,715.24

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Solution

The fourth proportional to 215,579.15, 297,505.97 and 123,715.24 is: 170,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,579.15 : 297,505.97 = 123,715.24 : x
  2. Step 2: Convert to fraction form
    215,579.15/297,505.97 = 123,715.24/x
  3. Step 3: Cross multiply
    215,579.15x = 297,505.97 × 123,715.24
  4. Step 4: Simplify right side
    215,579.15x = 36,806,022,766.26
  5. Step 5: Solve for x
    x = 36,806,022,766.26/215,579.15
  6. Step 6: Final answer
    x = 170,730.90

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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.