Home / 102,795.41-154,114.97-71,121.27

Finding the Fourth Proportional to 102,795.41, 154,114.97 and 71,121.27

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Solution

The fourth proportional to 102,795.41, 154,114.97 and 71,121.27 is: 106,627.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,795.41 : 154,114.97 = 71,121.27 : x
  2. Step 2: Convert to fraction form
    102,795.41/154,114.97 = 71,121.27/x
  3. Step 3: Cross multiply
    102,795.41x = 154,114.97 × 71,121.27
  4. Step 4: Simplify right side
    102,795.41x = 10,960,853,014.79
  5. Step 5: Solve for x
    x = 10,960,853,014.79/102,795.41
  6. Step 6: Final answer
    x = 106,627.84

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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.