Home / 150,429.64-225,586.12-80,270.68

Finding the Fourth Proportional to 150,429.64, 225,586.12 and 80,270.68

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Solution

The fourth proportional to 150,429.64, 225,586.12 and 80,270.68 is: 120,374.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,429.64 : 225,586.12 = 80,270.68 : x
  2. Step 2: Convert to fraction form
    150,429.64/225,586.12 = 80,270.68/x
  3. Step 3: Cross multiply
    150,429.64x = 225,586.12 × 80,270.68
  4. Step 4: Simplify right side
    150,429.64x = 18,107,951,250.96
  5. Step 5: Solve for x
    x = 18,107,951,250.96/150,429.64
  6. Step 6: Final answer
    x = 120,374.89

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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.