Home / 156,321.63-215,706.53-88,338.44

Finding the Fourth Proportional to 156,321.63, 215,706.53 and 88,338.44

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Solution

The fourth proportional to 156,321.63, 215,706.53 and 88,338.44 is: 121,897.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,321.63 : 215,706.53 = 88,338.44 : x
  2. Step 2: Convert to fraction form
    156,321.63/215,706.53 = 88,338.44/x
  3. Step 3: Cross multiply
    156,321.63x = 215,706.53 × 88,338.44
  4. Step 4: Simplify right side
    156,321.63x = 19,055,179,015.70
  5. Step 5: Solve for x
    x = 19,055,179,015.70/156,321.63
  6. Step 6: Final answer
    x = 121,897.26

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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.