Home / 165,843.24-228,857.58-90,390.12

Finding the Fourth Proportional to 165,843.24, 228,857.58 and 90,390.12

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Solution

The fourth proportional to 165,843.24, 228,857.58 and 90,390.12 is: 124,735.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,843.24 : 228,857.58 = 90,390.12 : x
  2. Step 2: Convert to fraction form
    165,843.24/228,857.58 = 90,390.12/x
  3. Step 3: Cross multiply
    165,843.24x = 228,857.58 × 90,390.12
  4. Step 4: Simplify right side
    165,843.24x = 20,686,464,119.11
  5. Step 5: Solve for x
    x = 20,686,464,119.11/165,843.24
  6. Step 6: Final answer
    x = 124,735.05

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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.