Home / 165,709.41-228,678.99-90,257.91

Finding the Fourth Proportional to 165,709.41, 228,678.99 and 90,257.91

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Solution

The fourth proportional to 165,709.41, 228,678.99 and 90,257.91 is: 124,555.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,709.41 : 228,678.99 = 90,257.91 : x
  2. Step 2: Convert to fraction form
    165,709.41/228,678.99 = 90,257.91/x
  3. Step 3: Cross multiply
    165,709.41x = 228,678.99 × 90,257.91
  4. Step 4: Simplify right side
    165,709.41x = 20,640,086,502.30
  5. Step 5: Solve for x
    x = 20,640,086,502.30/165,709.41
  6. Step 6: Final answer
    x = 124,555.91

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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.