Home / 156,147.35-215,481.87-84,525.53

Finding the Fourth Proportional to 156,147.35, 215,481.87 and 84,525.53

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Solution

The fourth proportional to 156,147.35, 215,481.87 and 84,525.53 is: 116,644.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,147.35 : 215,481.87 = 84,525.53 : x
  2. Step 2: Convert to fraction form
    156,147.35/215,481.87 = 84,525.53/x
  3. Step 3: Cross multiply
    156,147.35x = 215,481.87 × 84,525.53
  4. Step 4: Simplify right side
    156,147.35x = 18,213,718,189.73
  5. Step 5: Solve for x
    x = 18,213,718,189.73/156,147.35
  6. Step 6: Final answer
    x = 116,644.43

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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.