Home / 156,239.28-215,610.14-84,619.31

Finding the Fourth Proportional to 156,239.28, 215,610.14 and 84,619.31

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Solution

The fourth proportional to 156,239.28, 215,610.14 and 84,619.31 is: 116,774.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,239.28 : 215,610.14 = 84,619.31 : x
  2. Step 2: Convert to fraction form
    156,239.28/215,610.14 = 84,619.31/x
  3. Step 3: Cross multiply
    156,239.28x = 215,610.14 × 84,619.31
  4. Step 4: Simplify right side
    156,239.28x = 18,244,780,409.30
  5. Step 5: Solve for x
    x = 18,244,780,409.30/156,239.28
  6. Step 6: Final answer
    x = 116,774.61

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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.