Home / 144,408.57-199,344.47-87,839.61

Finding the Fourth Proportional to 144,408.57, 199,344.47 and 87,839.61

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Solution

The fourth proportional to 144,408.57, 199,344.47 and 87,839.61 is: 121,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,408.57 : 199,344.47 = 87,839.61 : x
  2. Step 2: Convert to fraction form
    144,408.57/199,344.47 = 87,839.61/x
  3. Step 3: Cross multiply
    144,408.57x = 199,344.47 × 87,839.61
  4. Step 4: Simplify right side
    144,408.57x = 17,510,340,500.46
  5. Step 5: Solve for x
    x = 17,510,340,500.46/144,408.57
  6. Step 6: Final answer
    x = 121,255.55

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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.