Home / 165,381.13-228,249.03-100,843.57

Finding the Fourth Proportional to 165,381.13, 228,249.03 and 100,843.57

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Solution

The fourth proportional to 165,381.13, 228,249.03 and 100,843.57 is: 139,178.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,381.13 : 228,249.03 = 100,843.57 : x
  2. Step 2: Convert to fraction form
    165,381.13/228,249.03 = 100,843.57/x
  3. Step 3: Cross multiply
    165,381.13x = 228,249.03 × 100,843.57
  4. Step 4: Simplify right side
    165,381.13x = 23,017,447,034.24
  5. Step 5: Solve for x
    x = 23,017,447,034.24/165,381.13
  6. Step 6: Final answer
    x = 139,178.19

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1.5x scale

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.