Home / 165,805.05-228,810.96-90,353.55

Finding the Fourth Proportional to 165,805.05, 228,810.96 and 90,353.55

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Solution

The fourth proportional to 165,805.05, 228,810.96 and 90,353.55 is: 124,687.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,805.05 : 228,810.96 = 90,353.55 : x
  2. Step 2: Convert to fraction form
    165,805.05/228,810.96 = 90,353.55/x
  3. Step 3: Cross multiply
    165,805.05x = 228,810.96 × 90,353.55
  4. Step 4: Simplify right side
    165,805.05x = 20,673,882,514.91
  5. Step 5: Solve for x
    x = 20,673,882,514.91/165,805.05
  6. Step 6: Final answer
    x = 124,687.89

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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.