Home / 124,912.26-172,435.22-79,651.08

Finding the Fourth Proportional to 124,912.26, 172,435.22 and 79,651.08

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Solution

The fourth proportional to 124,912.26, 172,435.22 and 79,651.08 is: 109,954.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,912.26 : 172,435.22 = 79,651.08 : x
  2. Step 2: Convert to fraction form
    124,912.26/172,435.22 = 79,651.08/x
  3. Step 3: Cross multiply
    124,912.26x = 172,435.22 × 79,651.08
  4. Step 4: Simplify right side
    124,912.26x = 13,734,651,503.04
  5. Step 5: Solve for x
    x = 13,734,651,503.04/124,912.26
  6. Step 6: Final answer
    x = 109,954.39

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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.