Home / 321,156.09-481,801.77-121,472.10

Finding the Fourth Proportional to 321,156.09, 481,801.77 and 121,472.10

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Solution

The fourth proportional to 321,156.09, 481,801.77 and 121,472.10 is: 182,233.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,156.09 : 481,801.77 = 121,472.10 : x
  2. Step 2: Convert to fraction form
    321,156.09/481,801.77 = 121,472.10/x
  3. Step 3: Cross multiply
    321,156.09x = 481,801.77 × 121,472.10
  4. Step 4: Simplify right side
    321,156.09x = 58,525,472,785.62
  5. Step 5: Solve for x
    x = 58,525,472,785.62/321,156.09
  6. Step 6: Final answer
    x = 182,233.73

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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.