Home / 156,091.26-215,405.92-84,471.28

Finding the Fourth Proportional to 156,091.26, 215,405.92 and 84,471.28

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Solution

The fourth proportional to 156,091.26, 215,405.92 and 84,471.28 is: 116,570.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,091.26 : 215,405.92 = 84,471.28 : x
  2. Step 2: Convert to fraction form
    156,091.26/215,405.92 = 84,471.28/x
  3. Step 3: Cross multiply
    156,091.26x = 215,405.92 × 84,471.28
  4. Step 4: Simplify right side
    156,091.26x = 18,195,613,781.98
  5. Step 5: Solve for x
    x = 18,195,613,781.98/156,091.26
  6. Step 6: Final answer
    x = 116,570.36

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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.