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Finding the Fourth Proportional to 188,630.49, 282,964.23 and 68,720.03

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Solution

The fourth proportional to 188,630.49, 282,964.23 and 68,720.03 is: 103,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,630.49 : 282,964.23 = 68,720.03 : x
  2. Step 2: Convert to fraction form
    188,630.49/282,964.23 = 68,720.03/x
  3. Step 3: Cross multiply
    188,630.49x = 282,964.23 × 68,720.03
  4. Step 4: Simplify right side
    188,630.49x = 19,445,308,959.71
  5. Step 5: Solve for x
    x = 19,445,308,959.71/188,630.49
  6. Step 6: Final answer
    x = 103,086.78

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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.