Home / 146,669.32-219,996.69-80,239.20

Finding the Fourth Proportional to 146,669.32, 219,996.69 and 80,239.20

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Solution

The fourth proportional to 146,669.32, 219,996.69 and 80,239.20 is: 120,354.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,669.32 : 219,996.69 = 80,239.20 : x
  2. Step 2: Convert to fraction form
    146,669.32/219,996.69 = 80,239.20/x
  3. Step 3: Cross multiply
    146,669.32x = 219,996.69 × 80,239.20
  4. Step 4: Simplify right side
    146,669.32x = 17,652,358,408.25
  5. Step 5: Solve for x
    x = 17,652,358,408.25/146,669.32
  6. Step 6: Final answer
    x = 120,354.81

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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.