Home / 165,646.08-228,597.12-90,201.60

Finding the Fourth Proportional to 165,646.08, 228,597.12 and 90,201.60

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Solution

The fourth proportional to 165,646.08, 228,597.12 and 90,201.60 is: 124,481.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,646.08 : 228,597.12 = 90,201.60 : x
  2. Step 2: Convert to fraction form
    165,646.08/228,597.12 = 90,201.60/x
  3. Step 3: Cross multiply
    165,646.08x = 228,597.12 × 90,201.60
  4. Step 4: Simplify right side
    165,646.08x = 20,619,825,979.39
  5. Step 5: Solve for x
    x = 20,619,825,979.39/165,646.08
  6. Step 6: Final answer
    x = 124,481.22

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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.