Home / 165,805.28-248,683.69-81,542.83

Finding the Fourth Proportional to 165,805.28, 248,683.69 and 81,542.83

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Solution

The fourth proportional to 165,805.28, 248,683.69 and 81,542.83 is: 122,302.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,805.28 : 248,683.69 = 81,542.83 : x
  2. Step 2: Convert to fraction form
    165,805.28/248,683.69 = 81,542.83/x
  3. Step 3: Cross multiply
    165,805.28x = 248,683.69 × 81,542.83
  4. Step 4: Simplify right side
    165,805.28x = 20,278,371,333.86
  5. Step 5: Solve for x
    x = 20,278,371,333.86/165,805.28
  6. Step 6: Final answer
    x = 122,302.33

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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.