Home / 215,721.31-297,696.89-120,234.16

Finding the Fourth Proportional to 215,721.31, 297,696.89 and 120,234.16

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Solution

The fourth proportional to 215,721.31, 297,696.89 and 120,234.16 is: 165,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,721.31 : 297,696.89 = 120,234.16 : x
  2. Step 2: Convert to fraction form
    215,721.31/297,696.89 = 120,234.16/x
  3. Step 3: Cross multiply
    215,721.31x = 297,696.89 × 120,234.16
  4. Step 4: Simplify right side
    215,721.31x = 35,793,335,503.76
  5. Step 5: Solve for x
    x = 35,793,335,503.76/215,721.31
  6. Step 6: Final answer
    x = 165,923.97

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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.