Home / 215,616.20-297,524.54-123,730.76

Finding the Fourth Proportional to 215,616.20, 297,524.54 and 123,730.76

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Solution

The fourth proportional to 215,616.20, 297,524.54 and 123,730.76 is: 170,733.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,616.20 : 297,524.54 = 123,730.76 : x
  2. Step 2: Convert to fraction form
    215,616.20/297,524.54 = 123,730.76/x
  3. Step 3: Cross multiply
    215,616.20x = 297,524.54 × 123,730.76
  4. Step 4: Simplify right side
    215,616.20x = 36,812,938,505.99
  5. Step 5: Solve for x
    x = 36,812,938,505.99/215,616.20
  6. Step 6: Final answer
    x = 170,733.64

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1.5x scale

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.