Home / 215,977.12-298,056.61-120,502.42

Finding the Fourth Proportional to 215,977.12, 298,056.61 and 120,502.42

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Solution

The fourth proportional to 215,977.12, 298,056.61 and 120,502.42 is: 166,297.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,977.12 : 298,056.61 = 120,502.42 : x
  2. Step 2: Convert to fraction form
    215,977.12/298,056.61 = 120,502.42/x
  3. Step 3: Cross multiply
    215,977.12x = 298,056.61 × 120,502.42
  4. Step 4: Simplify right side
    215,977.12x = 35,916,542,207.48
  5. Step 5: Solve for x
    x = 35,916,542,207.48/215,977.12
  6. Step 6: Final answer
    x = 166,297.91

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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.