Home / 138,981.11-208,470.12-33,800.18

Finding the Fourth Proportional to 138,981.11, 208,470.12 and 33,800.18

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Solution

The fourth proportional to 138,981.11, 208,470.12 and 33,800.18 is: 50,699.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,981.11 : 208,470.12 = 33,800.18 : x
  2. Step 2: Convert to fraction form
    138,981.11/208,470.12 = 33,800.18/x
  3. Step 3: Cross multiply
    138,981.11x = 208,470.12 × 33,800.18
  4. Step 4: Simplify right side
    138,981.11x = 7,046,326,538.27
  5. Step 5: Solve for x
    x = 7,046,326,538.27/138,981.11
  6. Step 6: Final answer
    x = 50,699.89

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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.