Home / 123,164.31-184,285.11-87,707.55

Finding the Fourth Proportional to 123,164.31, 184,285.11 and 87,707.55

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Solution

The fourth proportional to 123,164.31, 184,285.11 and 87,707.55 is: 131,232.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,164.31 : 184,285.11 = 87,707.55 : x
  2. Step 2: Convert to fraction form
    123,164.31/184,285.11 = 87,707.55/x
  3. Step 3: Cross multiply
    123,164.31x = 184,285.11 × 87,707.55
  4. Step 4: Simplify right side
    123,164.31x = 16,163,195,499.58
  5. Step 5: Solve for x
    x = 16,163,195,499.58/123,164.31
  6. Step 6: Final answer
    x = 131,232.79

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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.