Home / 98,121.03-135,408.45-55,109.84

Finding the Fourth Proportional to 98,121.03, 135,408.45 and 55,109.84

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Solution

The fourth proportional to 98,121.03, 135,408.45 and 55,109.84 is: 76,052.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,121.03 : 135,408.45 = 55,109.84 : x
  2. Step 2: Convert to fraction form
    98,121.03/135,408.45 = 55,109.84/x
  3. Step 3: Cross multiply
    98,121.03x = 135,408.45 × 55,109.84
  4. Step 4: Simplify right side
    98,121.03x = 7,462,337,337.11
  5. Step 5: Solve for x
    x = 7,462,337,337.11/98,121.03
  6. Step 6: Final answer
    x = 76,052.37

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1.5x scale

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.