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Finding the Fourth Proportional to 138,806.80, 208,217.80 and 44,030.14

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Solution

The fourth proportional to 138,806.80, 208,217.80 and 44,030.14 is: 66,047.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,806.80 : 208,217.80 = 44,030.14 : x
  2. Step 2: Convert to fraction form
    138,806.80/208,217.80 = 44,030.14/x
  3. Step 3: Cross multiply
    138,806.80x = 208,217.80 × 44,030.14
  4. Step 4: Simplify right side
    138,806.80x = 9,167,858,884.49
  5. Step 5: Solve for x
    x = 9,167,858,884.49/138,806.80
  6. Step 6: Final answer
    x = 66,047.62

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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.