Home / 165,722.28-228,695.58-90,270.78

Finding the Fourth Proportional to 165,722.28, 228,695.58 and 90,270.78

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Solution

The fourth proportional to 165,722.28, 228,695.58 and 90,270.78 is: 124,573.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,722.28 : 228,695.58 = 90,270.78 : x
  2. Step 2: Convert to fraction form
    165,722.28/228,695.58 = 90,270.78/x
  3. Step 3: Cross multiply
    165,722.28x = 228,695.58 × 90,270.78
  4. Step 4: Simplify right side
    165,722.28x = 20,644,528,389.15
  5. Step 5: Solve for x
    x = 20,644,528,389.15/165,722.28
  6. Step 6: Final answer
    x = 124,573.04

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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.