Home / 156,342.78-215,753.33-84,722.85

Finding the Fourth Proportional to 156,342.78, 215,753.33 and 84,722.85

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Solution

The fourth proportional to 156,342.78, 215,753.33 and 84,722.85 is: 116,917.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,342.78 : 215,753.33 = 84,722.85 : x
  2. Step 2: Convert to fraction form
    156,342.78/215,753.33 = 84,722.85/x
  3. Step 3: Cross multiply
    156,342.78x = 215,753.33 × 84,722.85
  4. Step 4: Simplify right side
    156,342.78x = 18,279,237,014.59
  5. Step 5: Solve for x
    x = 18,279,237,014.59/156,342.78
  6. Step 6: Final answer
    x = 116,917.69

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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.