Home / 165,643.25-228,587.69-90,191.75

Finding the Fourth Proportional to 165,643.25, 228,587.69 and 90,191.75

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Solution

The fourth proportional to 165,643.25, 228,587.69 and 90,191.75 is: 124,464.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,643.25 : 228,587.69 = 90,191.75 : x
  2. Step 2: Convert to fraction form
    165,643.25/228,587.69 = 90,191.75/x
  3. Step 3: Cross multiply
    165,643.25x = 228,587.69 × 90,191.75
  4. Step 4: Simplify right side
    165,643.25x = 20,616,723,338.60
  5. Step 5: Solve for x
    x = 20,616,723,338.60/165,643.25
  6. Step 6: Final answer
    x = 124,464.62

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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.