Home / 99,231.36-136,939.46-53,908.97

Finding the Fourth Proportional to 99,231.36, 136,939.46 and 53,908.97

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Solution

The fourth proportional to 99,231.36, 136,939.46 and 53,908.97 is: 74,394.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,231.36 : 136,939.46 = 53,908.97 : x
  2. Step 2: Convert to fraction form
    99,231.36/136,939.46 = 53,908.97/x
  3. Step 3: Cross multiply
    99,231.36x = 136,939.46 × 53,908.97
  4. Step 4: Simplify right side
    99,231.36x = 7,382,264,286.71
  5. Step 5: Solve for x
    x = 7,382,264,286.71/99,231.36
  6. Step 6: Final answer
    x = 74,394.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.