Home / 204,145.76-306,225.48-71,037.20

Finding the Fourth Proportional to 204,145.76, 306,225.48 and 71,037.20

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Solution

The fourth proportional to 204,145.76, 306,225.48 and 71,037.20 is: 106,558.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,145.76 : 306,225.48 = 71,037.20 : x
  2. Step 2: Convert to fraction form
    204,145.76/306,225.48 = 71,037.20/x
  3. Step 3: Cross multiply
    204,145.76x = 306,225.48 × 71,037.20
  4. Step 4: Simplify right side
    204,145.76x = 21,753,400,667.86
  5. Step 5: Solve for x
    x = 21,753,400,667.86/204,145.76
  6. Step 6: Final answer
    x = 106,558.18

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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.