Home / 231,140.48-318,950.40-130,519.04

Finding the Fourth Proportional to 231,140.48, 318,950.40 and 130,519.04

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Solution

The fourth proportional to 231,140.48, 318,950.40 and 130,519.04 is: 180,103.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,140.48 : 318,950.40 = 130,519.04 : x
  2. Step 2: Convert to fraction form
    231,140.48/318,950.40 = 130,519.04/x
  3. Step 3: Cross multiply
    231,140.48x = 318,950.40 × 130,519.04
  4. Step 4: Simplify right side
    231,140.48x = 41,629,100,015.62
  5. Step 5: Solve for x
    x = 41,629,100,015.62/231,140.48
  6. Step 6: Final answer
    x = 180,103.03

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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.