Home / 129,957.48-179,342.82-76,243.44

Finding the Fourth Proportional to 129,957.48, 179,342.82 and 76,243.44

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Solution

The fourth proportional to 129,957.48, 179,342.82 and 76,243.44 is: 105,216.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,957.48 : 179,342.82 = 76,243.44 : x
  2. Step 2: Convert to fraction form
    129,957.48/179,342.82 = 76,243.44/x
  3. Step 3: Cross multiply
    129,957.48x = 179,342.82 × 76,243.44
  4. Step 4: Simplify right side
    129,957.48x = 13,673,713,536.10
  5. Step 5: Solve for x
    x = 13,673,713,536.10/129,957.48
  6. Step 6: Final answer
    x = 105,216.83

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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.