Home / 165,786.60-228,785.46-90,335.10

Finding the Fourth Proportional to 165,786.60, 228,785.46 and 90,335.10

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Solution

The fourth proportional to 165,786.60, 228,785.46 and 90,335.10 is: 124,662.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,786.60 : 228,785.46 = 90,335.10 : x
  2. Step 2: Convert to fraction form
    165,786.60/228,785.46 = 90,335.10/x
  3. Step 3: Cross multiply
    165,786.60x = 228,785.46 × 90,335.10
  4. Step 4: Simplify right side
    165,786.60x = 20,667,357,407.65
  5. Step 5: Solve for x
    x = 20,667,357,407.65/165,786.60
  6. Step 6: Final answer
    x = 124,662.41

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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.