Home / 156,239.53-215,610.49-84,619.56

Finding the Fourth Proportional to 156,239.53, 215,610.49 and 84,619.56

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Solution

The fourth proportional to 156,239.53, 215,610.49 and 84,619.56 is: 116,774.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,239.53 : 215,610.49 = 84,619.56 : x
  2. Step 2: Convert to fraction form
    156,239.53/215,610.49 = 84,619.56/x
  3. Step 3: Cross multiply
    156,239.53x = 215,610.49 × 84,619.56
  4. Step 4: Simplify right side
    156,239.53x = 18,244,863,505.58
  5. Step 5: Solve for x
    x = 18,244,863,505.58/156,239.53
  6. Step 6: Final answer
    x = 116,774.95

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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.