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Finding the Fourth Proportional to 201,605.04, 278,099.08 and 126,022.32

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Solution

The fourth proportional to 201,605.04, 278,099.08 and 126,022.32 is: 173,838.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,605.04 : 278,099.08 = 126,022.32 : x
  2. Step 2: Convert to fraction form
    201,605.04/278,099.08 = 126,022.32/x
  3. Step 3: Cross multiply
    201,605.04x = 278,099.08 × 126,022.32
  4. Step 4: Simplify right side
    201,605.04x = 35,046,691,251.47
  5. Step 5: Solve for x
    x = 35,046,691,251.47/201,605.04
  6. Step 6: Final answer
    x = 173,838.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.