Home / 165,690.16-228,652.68-90,238.96

Finding the Fourth Proportional to 165,690.16, 228,652.68 and 90,238.96

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Solution

The fourth proportional to 165,690.16, 228,652.68 and 90,238.96 is: 124,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,690.16 : 228,652.68 = 90,238.96 : x
  2. Step 2: Convert to fraction form
    165,690.16/228,652.68 = 90,238.96/x
  3. Step 3: Cross multiply
    165,690.16x = 228,652.68 × 90,238.96
  4. Step 4: Simplify right side
    165,690.16x = 20,633,380,044.41
  5. Step 5: Solve for x
    x = 20,633,380,044.41/165,690.16
  6. Step 6: Final answer
    x = 124,529.91

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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.