Home / 100,819.28-151,287.48-55,845.20

Finding the Fourth Proportional to 100,819.28, 151,287.48 and 55,845.20

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Solution

The fourth proportional to 100,819.28, 151,287.48 and 55,845.20 is: 83,800.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,819.28 : 151,287.48 = 55,845.20 : x
  2. Step 2: Convert to fraction form
    100,819.28/151,287.48 = 55,845.20/x
  3. Step 3: Cross multiply
    100,819.28x = 151,287.48 × 55,845.20
  4. Step 4: Simplify right side
    100,819.28x = 8,448,679,578.10
  5. Step 5: Solve for x
    x = 8,448,679,578.10/100,819.28
  6. Step 6: Final answer
    x = 83,800.24

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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.