Home / 165,479.34-228,362.49-90,028.38

Finding the Fourth Proportional to 165,479.34, 228,362.49 and 90,028.38

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Solution

The fourth proportional to 165,479.34, 228,362.49 and 90,028.38 is: 124,239.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,479.34 : 228,362.49 = 90,028.38 : x
  2. Step 2: Convert to fraction form
    165,479.34/228,362.49 = 90,028.38/x
  3. Step 3: Cross multiply
    165,479.34x = 228,362.49 × 90,028.38
  4. Step 4: Simplify right side
    165,479.34x = 20,559,105,027.47
  5. Step 5: Solve for x
    x = 20,559,105,027.47/165,479.34
  6. Step 6: Final answer
    x = 124,239.71

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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.