Home / 165,858.06-228,884.13-90,406.56

Finding the Fourth Proportional to 165,858.06, 228,884.13 and 90,406.56

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Solution

The fourth proportional to 165,858.06, 228,884.13 and 90,406.56 is: 124,761.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,858.06 : 228,884.13 = 90,406.56 : x
  2. Step 2: Convert to fraction form
    165,858.06/228,884.13 = 90,406.56/x
  3. Step 3: Cross multiply
    165,858.06x = 228,884.13 × 90,406.56
  4. Step 4: Simplify right side
    165,858.06x = 20,692,625,759.00
  5. Step 5: Solve for x
    x = 20,692,625,759.00/165,858.06
  6. Step 6: Final answer
    x = 124,761.05

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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.