Home / 120,182.91-180,147.24-45,270.64

Finding the Fourth Proportional to 120,182.91, 180,147.24 and 45,270.64

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Solution

The fourth proportional to 120,182.91, 180,147.24 and 45,270.64 is: 67,858.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,182.91 : 180,147.24 = 45,270.64 : x
  2. Step 2: Convert to fraction form
    120,182.91/180,147.24 = 45,270.64/x
  3. Step 3: Cross multiply
    120,182.91x = 180,147.24 × 45,270.64
  4. Step 4: Simplify right side
    120,182.91x = 8,155,380,849.03
  5. Step 5: Solve for x
    x = 8,155,380,849.03/120,182.91
  6. Step 6: Final answer
    x = 67,858.07

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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.