Home / 165,473.28-228,353.58-90,021.78

Finding the Fourth Proportional to 165,473.28, 228,353.58 and 90,021.78

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Solution

The fourth proportional to 165,473.28, 228,353.58 and 90,021.78 is: 124,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,473.28 : 228,353.58 = 90,021.78 : x
  2. Step 2: Convert to fraction form
    165,473.28/228,353.58 = 90,021.78/x
  3. Step 3: Cross multiply
    165,473.28x = 228,353.58 × 90,021.78
  4. Step 4: Simplify right side
    165,473.28x = 20,556,795,740.97
  5. Step 5: Solve for x
    x = 20,556,795,740.97/165,473.28
  6. Step 6: Final answer
    x = 124,230.30

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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.