Home / 215,077.10-322,658.70-120,441.85

Finding the Fourth Proportional to 215,077.10, 322,658.70 and 120,441.85

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Solution

The fourth proportional to 215,077.10, 322,658.70 and 120,441.85 is: 180,686.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,077.10 : 322,658.70 = 120,441.85 : x
  2. Step 2: Convert to fraction form
    215,077.10/322,658.70 = 120,441.85/x
  3. Step 3: Cross multiply
    215,077.10x = 322,658.70 × 120,441.85
  4. Step 4: Simplify right side
    215,077.10x = 38,861,610,788.89
  5. Step 5: Solve for x
    x = 38,861,610,788.89/215,077.10
  6. Step 6: Final answer
    x = 180,686.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.