Home / 156,101.07-215,419.46-84,481.11

Finding the Fourth Proportional to 156,101.07, 215,419.46 and 84,481.11

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Solution

The fourth proportional to 156,101.07, 215,419.46 and 84,481.11 is: 116,583.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,101.07 : 215,419.46 = 84,481.11 : x
  2. Step 2: Convert to fraction form
    156,101.07/215,419.46 = 84,481.11/x
  3. Step 3: Cross multiply
    156,101.07x = 215,419.46 × 84,481.11
  4. Step 4: Simplify right side
    156,101.07x = 18,198,874,019.30
  5. Step 5: Solve for x
    x = 18,198,874,019.30/156,101.07
  6. Step 6: Final answer
    x = 116,583.92

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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.