Home / 179,640.90-247,906.21-99,071.70

Finding the Fourth Proportional to 179,640.90, 247,906.21 and 99,071.70

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Solution

The fourth proportional to 179,640.90, 247,906.21 and 99,071.70 is: 136,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,640.90 : 247,906.21 = 99,071.70 : x
  2. Step 2: Convert to fraction form
    179,640.90/247,906.21 = 99,071.70/x
  3. Step 3: Cross multiply
    179,640.90x = 247,906.21 × 99,071.70
  4. Step 4: Simplify right side
    179,640.90x = 24,560,489,665.26
  5. Step 5: Solve for x
    x = 24,560,489,665.26/179,640.90
  6. Step 6: Final answer
    x = 136,719.92

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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.