Home / 165,040.70-247,239.83-121,684.66

Finding the Fourth Proportional to 165,040.70, 247,239.83 and 121,684.66

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Solution

The fourth proportional to 165,040.70, 247,239.83 and 121,684.66 is: 182,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,040.70 : 247,239.83 = 121,684.66 : x
  2. Step 2: Convert to fraction form
    165,040.70/247,239.83 = 121,684.66/x
  3. Step 3: Cross multiply
    165,040.70x = 247,239.83 × 121,684.66
  4. Step 4: Simplify right side
    165,040.70x = 30,085,295,044.37
  5. Step 5: Solve for x
    x = 30,085,295,044.37/165,040.70
  6. Step 6: Final answer
    x = 182,290.16

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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.