Home / 205,156.88-283,163.74-120,301.28

Finding the Fourth Proportional to 205,156.88, 283,163.74 and 120,301.28

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Solution

The fourth proportional to 205,156.88, 283,163.74 and 120,301.28 is: 166,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,156.88 : 283,163.74 = 120,301.28 : x
  2. Step 2: Convert to fraction form
    205,156.88/283,163.74 = 120,301.28/x
  3. Step 3: Cross multiply
    205,156.88x = 283,163.74 × 120,301.28
  4. Step 4: Simplify right side
    205,156.88x = 34,064,959,716.88
  5. Step 5: Solve for x
    x = 34,064,959,716.88/205,156.88
  6. Step 6: Final answer
    x = 166,043.47

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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.