Home / 165,485.28-228,370.68-90,034.32

Finding the Fourth Proportional to 165,485.28, 228,370.68 and 90,034.32

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Solution

The fourth proportional to 165,485.28, 228,370.68 and 90,034.32 is: 124,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,485.28 : 228,370.68 = 90,034.32 : x
  2. Step 2: Convert to fraction form
    165,485.28/228,370.68 = 90,034.32/x
  3. Step 3: Cross multiply
    165,485.28x = 228,370.68 × 90,034.32
  4. Step 4: Simplify right side
    165,485.28x = 20,561,198,881.74
  5. Step 5: Solve for x
    x = 20,561,198,881.74/165,485.28
  6. Step 6: Final answer
    x = 124,247.90

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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.