Home / 165,934.56-228,988.08-90,478.56

Finding the Fourth Proportional to 165,934.56, 228,988.08 and 90,478.56

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Solution

The fourth proportional to 165,934.56, 228,988.08 and 90,478.56 is: 124,859.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,934.56 : 228,988.08 = 90,478.56 : x
  2. Step 2: Convert to fraction form
    165,934.56/228,988.08 = 90,478.56/x
  3. Step 3: Cross multiply
    165,934.56x = 228,988.08 × 90,478.56
  4. Step 4: Simplify right side
    165,934.56x = 20,718,511,735.56
  5. Step 5: Solve for x
    x = 20,718,511,735.56/165,934.56
  6. Step 6: Final answer
    x = 124,859.53

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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.