Home / 156,101.18-215,418.87-84,481.10

Finding the Fourth Proportional to 156,101.18, 215,418.87 and 84,481.10

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Solution

The fourth proportional to 156,101.18, 215,418.87 and 84,481.10 is: 116,583.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,101.18 : 215,418.87 = 84,481.10 : x
  2. Step 2: Convert to fraction form
    156,101.18/215,418.87 = 84,481.10/x
  3. Step 3: Cross multiply
    156,101.18x = 215,418.87 × 84,481.10
  4. Step 4: Simplify right side
    156,101.18x = 18,198,823,098.36
  5. Step 5: Solve for x
    x = 18,198,823,098.36/156,101.18
  6. Step 6: Final answer
    x = 116,583.51

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1.5x scale

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.