Home / 204,979.80-307,527.30-99,802.20

Finding the Fourth Proportional to 204,979.80, 307,527.30 and 99,802.20

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Solution

The fourth proportional to 204,979.80, 307,527.30 and 99,802.20 is: 149,731.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,979.80 : 307,527.30 = 99,802.20 : x
  2. Step 2: Convert to fraction form
    204,979.80/307,527.30 = 99,802.20/x
  3. Step 3: Cross multiply
    204,979.80x = 307,527.30 × 99,802.20
  4. Step 4: Simplify right side
    204,979.80x = 30,691,901,100.06
  5. Step 5: Solve for x
    x = 30,691,901,100.06/204,979.80
  6. Step 6: Final answer
    x = 149,731.34

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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.