Home / 165,558.48-228,471.72-90,107.76

Finding the Fourth Proportional to 165,558.48, 228,471.72 and 90,107.76

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Solution

The fourth proportional to 165,558.48, 228,471.72 and 90,107.76 is: 124,349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,558.48 : 228,471.72 = 90,107.76 : x
  2. Step 2: Convert to fraction form
    165,558.48/228,471.72 = 90,107.76/x
  3. Step 3: Cross multiply
    165,558.48x = 228,471.72 × 90,107.76
  4. Step 4: Simplify right side
    165,558.48x = 20,587,074,912.55
  5. Step 5: Solve for x
    x = 20,587,074,912.55/165,558.48
  6. Step 6: Final answer
    x = 124,349.26

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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.