Home / 103,989.88-155,984.83-33,869.20

Finding the Fourth Proportional to 103,989.88, 155,984.83 and 33,869.20

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Solution

The fourth proportional to 103,989.88, 155,984.83 and 33,869.20 is: 50,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,989.88 : 155,984.83 = 33,869.20 : x
  2. Step 2: Convert to fraction form
    103,989.88/155,984.83 = 33,869.20/x
  3. Step 3: Cross multiply
    103,989.88x = 155,984.83 × 33,869.20
  4. Step 4: Simplify right side
    103,989.88x = 5,283,080,454.97
  5. Step 5: Solve for x
    x = 5,283,080,454.97/103,989.88
  6. Step 6: Final answer
    x = 50,803.79

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Double scale
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Similar ratio
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1.5x scale

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.