Home / 156,170.08-215,514.80-84,550.12

Finding the Fourth Proportional to 156,170.08, 215,514.80 and 84,550.12

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Solution

The fourth proportional to 156,170.08, 215,514.80 and 84,550.12 is: 116,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,170.08 : 215,514.80 = 84,550.12 : x
  2. Step 2: Convert to fraction form
    156,170.08/215,514.80 = 84,550.12/x
  3. Step 3: Cross multiply
    156,170.08x = 215,514.80 × 84,550.12
  4. Step 4: Simplify right side
    156,170.08x = 18,221,802,201.78
  5. Step 5: Solve for x
    x = 18,221,802,201.78/156,170.08
  6. Step 6: Final answer
    x = 116,679.21

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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.