Home / 159,629.49-220,290.20-88,012.08

Finding the Fourth Proportional to 159,629.49, 220,290.20 and 88,012.08

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Solution

The fourth proportional to 159,629.49, 220,290.20 and 88,012.08 is: 121,457.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,629.49 : 220,290.20 = 88,012.08 : x
  2. Step 2: Convert to fraction form
    159,629.49/220,290.20 = 88,012.08/x
  3. Step 3: Cross multiply
    159,629.49x = 220,290.20 × 88,012.08
  4. Step 4: Simplify right side
    159,629.49x = 19,388,198,265.56
  5. Step 5: Solve for x
    x = 19,388,198,265.56/159,629.49
  6. Step 6: Final answer
    x = 121,457.50

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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.