Home / 123,865.08-185,604.03-90,431.52

Finding the Fourth Proportional to 123,865.08, 185,604.03 and 90,431.52

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Solution

The fourth proportional to 123,865.08, 185,604.03 and 90,431.52 is: 135,505.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,865.08 : 185,604.03 = 90,431.52 : x
  2. Step 2: Convert to fraction form
    123,865.08/185,604.03 = 90,431.52/x
  3. Step 3: Cross multiply
    123,865.08x = 185,604.03 × 90,431.52
  4. Step 4: Simplify right side
    123,865.08x = 16,784,454,551.03
  5. Step 5: Solve for x
    x = 16,784,454,551.03/123,865.08
  6. Step 6: Final answer
    x = 135,505.94

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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.