Home / 130,212.30-195,318.45-71,163.30

Finding the Fourth Proportional to 130,212.30, 195,318.45 and 71,163.30

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Solution

The fourth proportional to 130,212.30, 195,318.45 and 71,163.30 is: 106,744.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,212.30 : 195,318.45 = 71,163.30 : x
  2. Step 2: Convert to fraction form
    130,212.30/195,318.45 = 71,163.30/x
  3. Step 3: Cross multiply
    130,212.30x = 195,318.45 × 71,163.30
  4. Step 4: Simplify right side
    130,212.30x = 13,899,505,452.89
  5. Step 5: Solve for x
    x = 13,899,505,452.89/130,212.30
  6. Step 6: Final answer
    x = 106,744.95

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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.