Home / 151,715.20-227,718.60-76,919.80

Finding the Fourth Proportional to 151,715.20, 227,718.60 and 76,919.80

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Solution

The fourth proportional to 151,715.20, 227,718.60 and 76,919.80 is: 115,453.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,715.20 : 227,718.60 = 76,919.80 : x
  2. Step 2: Convert to fraction form
    151,715.20/227,718.60 = 76,919.80/x
  3. Step 3: Cross multiply
    151,715.20x = 227,718.60 × 76,919.80
  4. Step 4: Simplify right side
    151,715.20x = 17,516,069,168.28
  5. Step 5: Solve for x
    x = 17,516,069,168.28/151,715.20
  6. Step 6: Final answer
    x = 115,453.62

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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.