Home / 231,554.64-319,558.86-129,579.24

Finding the Fourth Proportional to 231,554.64, 319,558.86 and 129,579.24

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Solution

The fourth proportional to 231,554.64, 319,558.86 and 129,579.24 is: 178,826.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,554.64 : 319,558.86 = 129,579.24 : x
  2. Step 2: Convert to fraction form
    231,554.64/319,558.86 = 129,579.24/x
  3. Step 3: Cross multiply
    231,554.64x = 319,558.86 × 129,579.24
  4. Step 4: Simplify right side
    231,554.64x = 41,408,194,214.07
  5. Step 5: Solve for x
    x = 41,408,194,214.07/231,554.64
  6. Step 6: Final answer
    x = 178,826.88

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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.