Home / 165,658.16-228,610.92-90,206.64

Finding the Fourth Proportional to 165,658.16, 228,610.92 and 90,206.64

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Solution

The fourth proportional to 165,658.16, 228,610.92 and 90,206.64 is: 124,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,658.16 : 228,610.92 = 90,206.64 : x
  2. Step 2: Convert to fraction form
    165,658.16/228,610.92 = 90,206.64/x
  3. Step 3: Cross multiply
    165,658.16x = 228,610.92 × 90,206.64
  4. Step 4: Simplify right side
    165,658.16x = 20,622,222,960.51
  5. Step 5: Solve for x
    x = 20,622,222,960.51/165,658.16
  6. Step 6: Final answer
    x = 124,486.61

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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.