Home / 138,724.98-208,036.44-49,954.68

Finding the Fourth Proportional to 138,724.98, 208,036.44 and 49,954.68

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Solution

The fourth proportional to 138,724.98, 208,036.44 and 49,954.68 is: 74,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,724.98 : 208,036.44 = 49,954.68 : x
  2. Step 2: Convert to fraction form
    138,724.98/208,036.44 = 49,954.68/x
  3. Step 3: Cross multiply
    138,724.98x = 208,036.44 × 49,954.68
  4. Step 4: Simplify right side
    138,724.98x = 10,392,393,788.54
  5. Step 5: Solve for x
    x = 10,392,393,788.54/138,724.98
  6. Step 6: Final answer
    x = 74,913.64

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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.