Home / 140,636.52-194,078.91-76,105.76

Finding the Fourth Proportional to 140,636.52, 194,078.91 and 76,105.76

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Solution

The fourth proportional to 140,636.52, 194,078.91 and 76,105.76 is: 105,026.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,636.52 : 194,078.91 = 76,105.76 : x
  2. Step 2: Convert to fraction form
    140,636.52/194,078.91 = 76,105.76/x
  3. Step 3: Cross multiply
    140,636.52x = 194,078.91 × 76,105.76
  4. Step 4: Simplify right side
    140,636.52x = 14,770,521,975.13
  5. Step 5: Solve for x
    x = 14,770,521,975.13/140,636.52
  6. Step 6: Final answer
    x = 105,026.22

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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.