Home / 124,408.34-171,634.77-76,578.65

Finding the Fourth Proportional to 124,408.34, 171,634.77 and 76,578.65

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Solution

The fourth proportional to 124,408.34, 171,634.77 and 76,578.65 is: 105,648.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,408.34 : 171,634.77 = 76,578.65 : x
  2. Step 2: Convert to fraction form
    124,408.34/171,634.77 = 76,578.65/x
  3. Step 3: Cross multiply
    124,408.34x = 171,634.77 × 76,578.65
  4. Step 4: Simplify right side
    124,408.34x = 13,143,558,121.49
  5. Step 5: Solve for x
    x = 13,143,558,121.49/124,408.34
  6. Step 6: Final answer
    x = 105,648.53

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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.