Home / 109,989.40-165,004.62-50,785.96

Finding the Fourth Proportional to 109,989.40, 165,004.62 and 50,785.96

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Solution

The fourth proportional to 109,989.40, 165,004.62 and 50,785.96 is: 76,188.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,989.40 : 165,004.62 = 50,785.96 : x
  2. Step 2: Convert to fraction form
    109,989.40/165,004.62 = 50,785.96/x
  3. Step 3: Cross multiply
    109,989.40x = 165,004.62 × 50,785.96
  4. Step 4: Simplify right side
    109,989.40x = 8,379,918,031.14
  5. Step 5: Solve for x
    x = 8,379,918,031.14/109,989.40
  6. Step 6: Final answer
    x = 76,188.41

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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.