Home / 215,979.27-297,912.62-131,096.34

Finding the Fourth Proportional to 215,979.27, 297,912.62 and 131,096.34

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Solution

The fourth proportional to 215,979.27, 297,912.62 and 131,096.34 is: 180,828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,979.27 : 297,912.62 = 131,096.34 : x
  2. Step 2: Convert to fraction form
    215,979.27/297,912.62 = 131,096.34/x
  3. Step 3: Cross multiply
    215,979.27x = 297,912.62 × 131,096.34
  4. Step 4: Simplify right side
    215,979.27x = 39,055,254,121.81
  5. Step 5: Solve for x
    x = 39,055,254,121.81/215,979.27
  6. Step 6: Final answer
    x = 180,828.72

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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.