Home / 204,003.20-305,421.60-125,271.20

Finding the Fourth Proportional to 204,003.20, 305,421.60 and 125,271.20

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Solution

The fourth proportional to 204,003.20, 305,421.60 and 125,271.20 is: 187,548.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,003.20 : 305,421.60 = 125,271.20 : x
  2. Step 2: Convert to fraction form
    204,003.20/305,421.60 = 125,271.20/x
  3. Step 3: Cross multiply
    204,003.20x = 305,421.60 × 125,271.20
  4. Step 4: Simplify right side
    204,003.20x = 38,260,530,337.92
  5. Step 5: Solve for x
    x = 38,260,530,337.92/204,003.20
  6. Step 6: Final answer
    x = 187,548.68

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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.