Home / 159,941.88-220,721.58-88,321.80

Finding the Fourth Proportional to 159,941.88, 220,721.58 and 88,321.80

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Solution

The fourth proportional to 159,941.88, 220,721.58 and 88,321.80 is: 121,885.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,941.88 : 220,721.58 = 88,321.80 : x
  2. Step 2: Convert to fraction form
    159,941.88/220,721.58 = 88,321.80/x
  3. Step 3: Cross multiply
    159,941.88x = 220,721.58 × 88,321.80
  4. Step 4: Simplify right side
    159,941.88x = 19,494,527,244.44
  5. Step 5: Solve for x
    x = 19,494,527,244.44/159,941.88
  6. Step 6: Final answer
    x = 121,885.07

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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.