Home / 165,660.58-228,617.13-90,211.78

Finding the Fourth Proportional to 165,660.58, 228,617.13 and 90,211.78

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Solution

The fourth proportional to 165,660.58, 228,617.13 and 90,211.78 is: 124,495.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,660.58 : 228,617.13 = 90,211.78 : x
  2. Step 2: Convert to fraction form
    165,660.58/228,617.13 = 90,211.78/x
  3. Step 3: Cross multiply
    165,660.58x = 228,617.13 × 90,211.78
  4. Step 4: Simplify right side
    165,660.58x = 20,623,958,235.79
  5. Step 5: Solve for x
    x = 20,623,958,235.79/165,660.58
  6. Step 6: Final answer
    x = 124,495.27

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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.