Home / 123,418.35-170,329.90-88,991.41

Finding the Fourth Proportional to 123,418.35, 170,329.90 and 88,991.41

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Solution

The fourth proportional to 123,418.35, 170,329.90 and 88,991.41 is: 122,817.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,418.35 : 170,329.90 = 88,991.41 : x
  2. Step 2: Convert to fraction form
    123,418.35/170,329.90 = 88,991.41/x
  3. Step 3: Cross multiply
    123,418.35x = 170,329.90 × 88,991.41
  4. Step 4: Simplify right side
    123,418.35x = 15,157,897,966.16
  5. Step 5: Solve for x
    x = 15,157,897,966.16/123,418.35
  6. Step 6: Final answer
    x = 122,817.21

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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.