Home / 132,535.89-198,768.94-90,408.13

Finding the Fourth Proportional to 132,535.89, 198,768.94 and 90,408.13

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Solution

The fourth proportional to 132,535.89, 198,768.94 and 90,408.13 is: 135,588.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,535.89 : 198,768.94 = 90,408.13 : x
  2. Step 2: Convert to fraction form
    132,535.89/198,768.94 = 90,408.13/x
  3. Step 3: Cross multiply
    132,535.89x = 198,768.94 × 90,408.13
  4. Step 4: Simplify right side
    132,535.89x = 17,970,327,444.54
  5. Step 5: Solve for x
    x = 17,970,327,444.54/132,535.89
  6. Step 6: Final answer
    x = 135,588.39

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1.5x scale

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.