Home / 131,138.55-180,969.21-73,773.54

Finding the Fourth Proportional to 131,138.55, 180,969.21 and 73,773.54

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Solution

The fourth proportional to 131,138.55, 180,969.21 and 73,773.54 is: 101,806.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,138.55 : 180,969.21 = 73,773.54 : x
  2. Step 2: Convert to fraction form
    131,138.55/180,969.21 = 73,773.54/x
  3. Step 3: Cross multiply
    131,138.55x = 180,969.21 × 73,773.54
  4. Step 4: Simplify right side
    131,138.55x = 13,350,739,252.70
  5. Step 5: Solve for x
    x = 13,350,739,252.70/131,138.55
  6. Step 6: Final answer
    x = 101,806.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.