Home / 165,729.24-228,706.74-90,276.12

Finding the Fourth Proportional to 165,729.24, 228,706.74 and 90,276.12

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Solution

The fourth proportional to 165,729.24, 228,706.74 and 90,276.12 is: 124,581.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,729.24 : 228,706.74 = 90,276.12 : x
  2. Step 2: Convert to fraction form
    165,729.24/228,706.74 = 90,276.12/x
  3. Step 3: Cross multiply
    165,729.24x = 228,706.74 × 90,276.12
  4. Step 4: Simplify right side
    165,729.24x = 20,646,757,105.05
  5. Step 5: Solve for x
    x = 20,646,757,105.05/165,729.24
  6. Step 6: Final answer
    x = 124,581.26

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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.