Home / 138,724.02-208,036.78-49,953.68

Finding the Fourth Proportional to 138,724.02, 208,036.78 and 49,953.68

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Solution

The fourth proportional to 138,724.02, 208,036.78 and 49,953.68 is: 74,912.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,724.02 : 208,036.78 = 49,953.68 : x
  2. Step 2: Convert to fraction form
    138,724.02/208,036.78 = 49,953.68/x
  3. Step 3: Cross multiply
    138,724.02x = 208,036.78 × 49,953.68
  4. Step 4: Simplify right side
    138,724.02x = 10,392,202,736.35
  5. Step 5: Solve for x
    x = 10,392,202,736.35/138,724.02
  6. Step 6: Final answer
    x = 74,912.79

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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.