Home / 215,886.06-297,922.19-120,392.87

Finding the Fourth Proportional to 215,886.06, 297,922.19 and 120,392.87

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Solution

The fourth proportional to 215,886.06, 297,922.19 and 120,392.87 is: 166,141.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,886.06 : 297,922.19 = 120,392.87 : x
  2. Step 2: Convert to fraction form
    215,886.06/297,922.19 = 120,392.87/x
  3. Step 3: Cross multiply
    215,886.06x = 297,922.19 × 120,392.87
  4. Step 4: Simplify right side
    215,886.06x = 35,867,705,399.21
  5. Step 5: Solve for x
    x = 35,867,705,399.21/215,886.06
  6. Step 6: Final answer
    x = 166,141.83

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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.