Home / 161,742.74-223,202-90,121.22

Finding the Fourth Proportional to 161,742.74, 223,202 and 90,121.22

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Solution

The fourth proportional to 161,742.74, 223,202 and 90,121.22 is: 124,365.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,742.74 : 223,202 = 90,121.22 : x
  2. Step 2: Convert to fraction form
    161,742.74/223,202 = 90,121.22/x
  3. Step 3: Cross multiply
    161,742.74x = 223,202 × 90,121.22
  4. Step 4: Simplify right side
    161,742.74x = 20,115,236,546.44
  5. Step 5: Solve for x
    x = 20,115,236,546.44/161,742.74
  6. Step 6: Final answer
    x = 124,365.62

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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.