Home / 123,165.31-184,286.61-87,708.55

Finding the Fourth Proportional to 123,165.31, 184,286.61 and 87,708.55

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Solution

The fourth proportional to 123,165.31, 184,286.61 and 87,708.55 is: 131,234.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,165.31 : 184,286.61 = 87,708.55 : x
  2. Step 2: Convert to fraction form
    123,165.31/184,286.61 = 87,708.55/x
  3. Step 3: Cross multiply
    123,165.31x = 184,286.61 × 87,708.55
  4. Step 4: Simplify right side
    123,165.31x = 16,163,511,347.52
  5. Step 5: Solve for x
    x = 16,163,511,347.52/123,165.31
  6. Step 6: Final answer
    x = 131,234.28

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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.