Home / 165,633.75-228,579.45-90,187.11

Finding the Fourth Proportional to 165,633.75, 228,579.45 and 90,187.11

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Solution

The fourth proportional to 165,633.75, 228,579.45 and 90,187.11 is: 124,460.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,633.75 : 228,579.45 = 90,187.11 : x
  2. Step 2: Convert to fraction form
    165,633.75/228,579.45 = 90,187.11/x
  3. Step 3: Cross multiply
    165,633.75x = 228,579.45 × 90,187.11
  4. Step 4: Simplify right side
    165,633.75x = 20,614,920,000.89
  5. Step 5: Solve for x
    x = 20,614,920,000.89/165,633.75
  6. Step 6: Final answer
    x = 124,460.87

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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.