Home / 165,424.70-248,239.11-76,661.66

Finding the Fourth Proportional to 165,424.70, 248,239.11 and 76,661.66

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Solution

The fourth proportional to 165,424.70, 248,239.11 and 76,661.66 is: 115,039.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,424.70 : 248,239.11 = 76,661.66 : x
  2. Step 2: Convert to fraction form
    165,424.70/248,239.11 = 76,661.66/x
  3. Step 3: Cross multiply
    165,424.70x = 248,239.11 × 76,661.66
  4. Step 4: Simplify right side
    165,424.70x = 19,030,422,249.52
  5. Step 5: Solve for x
    x = 19,030,422,249.52/165,424.70
  6. Step 6: Final answer
    x = 115,039.79

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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.