Home / 204,519.12-306,852.48-71,419.02

Finding the Fourth Proportional to 204,519.12, 306,852.48 and 71,419.02

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Solution

The fourth proportional to 204,519.12, 306,852.48 and 71,419.02 is: 107,154.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,519.12 : 306,852.48 = 71,419.02 : x
  2. Step 2: Convert to fraction form
    204,519.12/306,852.48 = 71,419.02/x
  3. Step 3: Cross multiply
    204,519.12x = 306,852.48 × 71,419.02
  4. Step 4: Simplify right side
    204,519.12x = 21,915,103,406.17
  5. Step 5: Solve for x
    x = 21,915,103,406.17/204,519.12
  6. Step 6: Final answer
    x = 107,154.30

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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.