Home / 161,742.49-223,201.66-90,120.97

Finding the Fourth Proportional to 161,742.49, 223,201.66 and 90,120.97

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Solution

The fourth proportional to 161,742.49, 223,201.66 and 90,120.97 is: 124,365.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,742.49 : 223,201.66 = 90,120.97 : x
  2. Step 2: Convert to fraction form
    161,742.49/223,201.66 = 90,120.97/x
  3. Step 3: Cross multiply
    161,742.49x = 223,201.66 × 90,120.97
  4. Step 4: Simplify right side
    161,742.49x = 20,115,150,104.81
  5. Step 5: Solve for x
    x = 20,115,150,104.81/161,742.49
  6. Step 6: Final answer
    x = 124,365.28

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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.