Home / 156,236.26-215,619.32-88,265.71

Finding the Fourth Proportional to 156,236.26, 215,619.32 and 88,265.71

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Solution

The fourth proportional to 156,236.26, 215,619.32 and 88,265.71 is: 121,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,236.26 : 215,619.32 = 88,265.71 : x
  2. Step 2: Convert to fraction form
    156,236.26/215,619.32 = 88,265.71/x
  3. Step 3: Cross multiply
    156,236.26x = 215,619.32 × 88,265.71
  4. Step 4: Simplify right side
    156,236.26x = 19,031,792,369.52
  5. Step 5: Solve for x
    x = 19,031,792,369.52/156,236.26
  6. Step 6: Final answer
    x = 121,814.18

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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.