Home / 156,694.33-216,238.16-85,074.36

Finding the Fourth Proportional to 156,694.33, 216,238.16 and 85,074.36

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Solution

The fourth proportional to 156,694.33, 216,238.16 and 85,074.36 is: 117,402.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,694.33 : 216,238.16 = 85,074.36 : x
  2. Step 2: Convert to fraction form
    156,694.33/216,238.16 = 85,074.36/x
  3. Step 3: Cross multiply
    156,694.33x = 216,238.16 × 85,074.36
  4. Step 4: Simplify right side
    156,694.33x = 18,396,322,471.37
  5. Step 5: Solve for x
    x = 18,396,322,471.37/156,694.33
  6. Step 6: Final answer
    x = 117,402.61

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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.