Home / 139,132.30-208,694.97-76,013.74

Finding the Fourth Proportional to 139,132.30, 208,694.97 and 76,013.74

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Solution

The fourth proportional to 139,132.30, 208,694.97 and 76,013.74 is: 114,018.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,132.30 : 208,694.97 = 76,013.74 : x
  2. Step 2: Convert to fraction form
    139,132.30/208,694.97 = 76,013.74/x
  3. Step 3: Cross multiply
    139,132.30x = 208,694.97 × 76,013.74
  4. Step 4: Simplify right side
    139,132.30x = 15,863,685,188.89
  5. Step 5: Solve for x
    x = 15,863,685,188.89/139,132.30
  6. Step 6: Final answer
    x = 114,018.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.