Home / 94,431.38-141,647.12-90,331.43

Finding the Fourth Proportional to 94,431.38, 141,647.12 and 90,331.43

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Solution

The fourth proportional to 94,431.38, 141,647.12 and 90,331.43 is: 135,497.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,431.38 : 141,647.12 = 90,331.43 : x
  2. Step 2: Convert to fraction form
    94,431.38/141,647.12 = 90,331.43/x
  3. Step 3: Cross multiply
    94,431.38x = 141,647.12 × 90,331.43
  4. Step 4: Simplify right side
    94,431.38x = 12,795,185,745.09
  5. Step 5: Solve for x
    x = 12,795,185,745.09/94,431.38
  6. Step 6: Final answer
    x = 135,497.19

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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.