Home / 165,728.14-228,704.82-90,276.64

Finding the Fourth Proportional to 165,728.14, 228,704.82 and 90,276.64

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Solution

The fourth proportional to 165,728.14, 228,704.82 and 90,276.64 is: 124,581.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,728.14 : 228,704.82 = 90,276.64 : x
  2. Step 2: Convert to fraction form
    165,728.14/228,704.82 = 90,276.64/x
  3. Step 3: Cross multiply
    165,728.14x = 228,704.82 × 90,276.64
  4. Step 4: Simplify right side
    165,728.14x = 20,646,702,701.40
  5. Step 5: Solve for x
    x = 20,646,702,701.40/165,728.14
  6. Step 6: Final answer
    x = 124,581.76

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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.