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Finding the Fourth Proportional to 159,880.80, 220,629.71 and 88,259.28

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Solution

The fourth proportional to 159,880.80, 220,629.71 and 88,259.28 is: 121,794.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,880.80 : 220,629.71 = 88,259.28 : x
  2. Step 2: Convert to fraction form
    159,880.80/220,629.71 = 88,259.28/x
  3. Step 3: Cross multiply
    159,880.80x = 220,629.71 × 88,259.28
  4. Step 4: Simplify right side
    159,880.80x = 19,472,619,351.21
  5. Step 5: Solve for x
    x = 19,472,619,351.21/159,880.80
  6. Step 6: Final answer
    x = 121,794.61

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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.