Home / 108,553.57-162,876.83-45,388.45

Finding the Fourth Proportional to 108,553.57, 162,876.83 and 45,388.45

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Solution

The fourth proportional to 108,553.57, 162,876.83 and 45,388.45 is: 68,102.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,553.57 : 162,876.83 = 45,388.45 : x
  2. Step 2: Convert to fraction form
    108,553.57/162,876.83 = 45,388.45/x
  3. Step 3: Cross multiply
    108,553.57x = 162,876.83 × 45,388.45
  4. Step 4: Simplify right side
    108,553.57x = 7,392,726,831.27
  5. Step 5: Solve for x
    x = 7,392,726,831.27/108,553.57
  6. Step 6: Final answer
    x = 68,102.11

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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.