Home / 124,984.26-187,418.07-72,408.78

Finding the Fourth Proportional to 124,984.26, 187,418.07 and 72,408.78

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Solution

The fourth proportional to 124,984.26, 187,418.07 and 72,408.78 is: 108,579.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,984.26 : 187,418.07 = 72,408.78 : x
  2. Step 2: Convert to fraction form
    124,984.26/187,418.07 = 72,408.78/x
  3. Step 3: Cross multiply
    124,984.26x = 187,418.07 × 72,408.78
  4. Step 4: Simplify right side
    124,984.26x = 13,570,713,798.65
  5. Step 5: Solve for x
    x = 13,570,713,798.65/124,984.26
  6. Step 6: Final answer
    x = 108,579.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.