Home / 231,888.36-319,933.27-129,900.05

Finding the Fourth Proportional to 231,888.36, 319,933.27 and 129,900.05

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Solution

The fourth proportional to 231,888.36, 319,933.27 and 129,900.05 is: 179,221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,888.36 : 319,933.27 = 129,900.05 : x
  2. Step 2: Convert to fraction form
    231,888.36/319,933.27 = 129,900.05/x
  3. Step 3: Cross multiply
    231,888.36x = 319,933.27 × 129,900.05
  4. Step 4: Simplify right side
    231,888.36x = 41,559,347,769.66
  5. Step 5: Solve for x
    x = 41,559,347,769.66/231,888.36
  6. Step 6: Final answer
    x = 179,221.36

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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.