Home / 165,736.28-228,714.90-90,284.78

Finding the Fourth Proportional to 165,736.28, 228,714.90 and 90,284.78

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Solution

The fourth proportional to 165,736.28, 228,714.90 and 90,284.78 is: 124,592.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,736.28 : 228,714.90 = 90,284.78 : x
  2. Step 2: Convert to fraction form
    165,736.28/228,714.90 = 90,284.78/x
  3. Step 3: Cross multiply
    165,736.28x = 228,714.90 × 90,284.78
  4. Step 4: Simplify right side
    165,736.28x = 20,649,474,429.22
  5. Step 5: Solve for x
    x = 20,649,474,429.22/165,736.28
  6. Step 6: Final answer
    x = 124,592.36

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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.