Home / 205,642.98-283,669.02-120,743.64

Finding the Fourth Proportional to 205,642.98, 283,669.02 and 120,743.64

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Solution

The fourth proportional to 205,642.98, 283,669.02 and 120,743.64 is: 166,556.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,642.98 : 283,669.02 = 120,743.64 : x
  2. Step 2: Convert to fraction form
    205,642.98/283,669.02 = 120,743.64/x
  3. Step 3: Cross multiply
    205,642.98x = 283,669.02 × 120,743.64
  4. Step 4: Simplify right side
    205,642.98x = 34,251,230,030.03
  5. Step 5: Solve for x
    x = 34,251,230,030.03/205,642.98
  6. Step 6: Final answer
    x = 166,556.77

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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.