Home / 165,414.62-248,121.93-71,920.38

Finding the Fourth Proportional to 165,414.62, 248,121.93 and 71,920.38

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Solution

The fourth proportional to 165,414.62, 248,121.93 and 71,920.38 is: 107,880.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,414.62 : 248,121.93 = 71,920.38 : x
  2. Step 2: Convert to fraction form
    165,414.62/248,121.93 = 71,920.38/x
  3. Step 3: Cross multiply
    165,414.62x = 248,121.93 × 71,920.38
  4. Step 4: Simplify right side
    165,414.62x = 17,845,023,491.93
  5. Step 5: Solve for x
    x = 17,845,023,491.93/165,414.62
  6. Step 6: Final answer
    x = 107,880.57

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1.5x scale

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.