Home / 321,266.08-481,921.66-129,140.56

Finding the Fourth Proportional to 321,266.08, 481,921.66 and 129,140.56

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Solution

The fourth proportional to 321,266.08, 481,921.66 and 129,140.56 is: 193,719.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,266.08 : 481,921.66 = 129,140.56 : x
  2. Step 2: Convert to fraction form
    321,266.08/481,921.66 = 129,140.56/x
  3. Step 3: Cross multiply
    321,266.08x = 481,921.66 × 129,140.56
  4. Step 4: Simplify right side
    321,266.08x = 62,235,633,048.53
  5. Step 5: Solve for x
    x = 62,235,633,048.53/321,266.08
  6. Step 6: Final answer
    x = 193,719.90

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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.