Home / 165,668.20-228,624.72-90,216.64

Finding the Fourth Proportional to 165,668.20, 228,624.72 and 90,216.64

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Solution

The fourth proportional to 165,668.20, 228,624.72 and 90,216.64 is: 124,500.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,668.20 : 228,624.72 = 90,216.64 : x
  2. Step 2: Convert to fraction form
    165,668.20/228,624.72 = 90,216.64/x
  3. Step 3: Cross multiply
    165,668.20x = 228,624.72 × 90,216.64
  4. Step 4: Simplify right side
    165,668.20x = 20,625,754,059.34
  5. Step 5: Solve for x
    x = 20,625,754,059.34/165,668.20
  6. Step 6: Final answer
    x = 124,500.38

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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.