Home / 156,239.68-215,610.24-84,619.52

Finding the Fourth Proportional to 156,239.68, 215,610.24 and 84,619.52

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Solution

The fourth proportional to 156,239.68, 215,610.24 and 84,619.52 is: 116,774.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,239.68 : 215,610.24 = 84,619.52 : x
  2. Step 2: Convert to fraction form
    156,239.68/215,610.24 = 84,619.52/x
  3. Step 3: Cross multiply
    156,239.68x = 215,610.24 × 84,619.52
  4. Step 4: Simplify right side
    156,239.68x = 18,244,835,015.88
  5. Step 5: Solve for x
    x = 18,244,835,015.88/156,239.68
  6. Step 6: Final answer
    x = 116,774.66

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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.