Home / 165,231.74-228,019.38-89,780.24

Finding the Fourth Proportional to 165,231.74, 228,019.38 and 89,780.24

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Solution

The fourth proportional to 165,231.74, 228,019.38 and 89,780.24 is: 123,896.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,231.74 : 228,019.38 = 89,780.24 : x
  2. Step 2: Convert to fraction form
    165,231.74/228,019.38 = 89,780.24/x
  3. Step 3: Cross multiply
    165,231.74x = 228,019.38 × 89,780.24
  4. Step 4: Simplify right side
    165,231.74x = 20,471,634,661.05
  5. Step 5: Solve for x
    x = 20,471,634,661.05/165,231.74
  6. Step 6: Final answer
    x = 123,896.50

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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.