Home / 165,921.67-228,971.37-90,470.17

Finding the Fourth Proportional to 165,921.67, 228,971.37 and 90,470.17

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Solution

The fourth proportional to 165,921.67, 228,971.37 and 90,470.17 is: 124,848.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,921.67 : 228,971.37 = 90,470.17 : x
  2. Step 2: Convert to fraction form
    165,921.67/228,971.37 = 90,470.17/x
  3. Step 3: Cross multiply
    165,921.67x = 228,971.37 × 90,470.17
  4. Step 4: Simplify right side
    165,921.67x = 20,715,078,769.03
  5. Step 5: Solve for x
    x = 20,715,078,769.03/165,921.67
  6. Step 6: Final answer
    x = 124,848.54

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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.