Home / 138,839.94-208,172.43-117,787.37

Finding the Fourth Proportional to 138,839.94, 208,172.43 and 117,787.37

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Solution

The fourth proportional to 138,839.94, 208,172.43 and 117,787.37 is: 176,606.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,839.94 : 208,172.43 = 117,787.37 : x
  2. Step 2: Convert to fraction form
    138,839.94/208,172.43 = 117,787.37/x
  3. Step 3: Cross multiply
    138,839.94x = 208,172.43 × 117,787.37
  4. Step 4: Simplify right side
    138,839.94x = 24,520,081,995.35
  5. Step 5: Solve for x
    x = 24,520,081,995.35/138,839.94
  6. Step 6: Final answer
    x = 176,606.83

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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.