Home / 165,231.58-228,020.98-89,780.08

Finding the Fourth Proportional to 165,231.58, 228,020.98 and 89,780.08

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Solution

The fourth proportional to 165,231.58, 228,020.98 and 89,780.08 is: 123,897.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,231.58 : 228,020.98 = 89,780.08 : x
  2. Step 2: Convert to fraction form
    165,231.58/228,020.98 = 89,780.08/x
  3. Step 3: Cross multiply
    165,231.58x = 228,020.98 × 89,780.08
  4. Step 4: Simplify right side
    165,231.58x = 20,471,741,826.08
  5. Step 5: Solve for x
    x = 20,471,741,826.08/165,231.58
  6. Step 6: Final answer
    x = 123,897.27

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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.