Home / 165,777.38-228,772.78-90,325.88

Finding the Fourth Proportional to 165,777.38, 228,772.78 and 90,325.88

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Solution

The fourth proportional to 165,777.38, 228,772.78 and 90,325.88 is: 124,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,777.38 : 228,772.78 = 90,325.88 : x
  2. Step 2: Convert to fraction form
    165,777.38/228,772.78 = 90,325.88/x
  3. Step 3: Cross multiply
    165,777.38x = 228,772.78 × 90,325.88
  4. Step 4: Simplify right side
    165,777.38x = 20,664,101,303.87
  5. Step 5: Solve for x
    x = 20,664,101,303.87/165,777.38
  6. Step 6: Final answer
    x = 124,649.71

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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.