Home / 161,321.20-222,622.48-89,696.96

Finding the Fourth Proportional to 161,321.20, 222,622.48 and 89,696.96

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Solution

The fourth proportional to 161,321.20, 222,622.48 and 89,696.96 is: 123,781.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,321.20 : 222,622.48 = 89,696.96 : x
  2. Step 2: Convert to fraction form
    161,321.20/222,622.48 = 89,696.96/x
  3. Step 3: Cross multiply
    161,321.20x = 222,622.48 × 89,696.96
  4. Step 4: Simplify right side
    161,321.20x = 19,968,559,683.66
  5. Step 5: Solve for x
    x = 19,968,559,683.66/161,321.20
  6. Step 6: Final answer
    x = 123,781.37

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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.