Home / 98,408.98-135,647.22-66,522.52

Finding the Fourth Proportional to 98,408.98, 135,647.22 and 66,522.52

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Solution

The fourth proportional to 98,408.98, 135,647.22 and 66,522.52 is: 91,694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,408.98 : 135,647.22 = 66,522.52 : x
  2. Step 2: Convert to fraction form
    98,408.98/135,647.22 = 66,522.52/x
  3. Step 3: Cross multiply
    98,408.98x = 135,647.22 × 66,522.52
  4. Step 4: Simplify right side
    98,408.98x = 9,023,594,905.39
  5. Step 5: Solve for x
    x = 9,023,594,905.39/98,408.98
  6. Step 6: Final answer
    x = 91,694.83

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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.