Home / 231,566.30-319,624.35-136,103.66

Finding the Fourth Proportional to 231,566.30, 319,624.35 and 136,103.66

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Solution

The fourth proportional to 231,566.30, 319,624.35 and 136,103.66 is: 187,859.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,566.30 : 319,624.35 = 136,103.66 : x
  2. Step 2: Convert to fraction form
    231,566.30/319,624.35 = 136,103.66/x
  3. Step 3: Cross multiply
    231,566.30x = 319,624.35 × 136,103.66
  4. Step 4: Simplify right side
    231,566.30x = 43,502,043,860.12
  5. Step 5: Solve for x
    x = 43,502,043,860.12/231,566.30
  6. Step 6: Final answer
    x = 187,859.99

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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.