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Finding the Fourth Proportional to 156,982.62, 216,682.71 and 89,959.26

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Solution

The fourth proportional to 156,982.62, 216,682.71 and 89,959.26 is: 124,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,982.62 : 216,682.71 = 89,959.26 : x
  2. Step 2: Convert to fraction form
    156,982.62/216,682.71 = 89,959.26/x
  3. Step 3: Cross multiply
    156,982.62x = 216,682.71 × 89,959.26
  4. Step 4: Simplify right side
    156,982.62x = 19,492,616,246.39
  5. Step 5: Solve for x
    x = 19,492,616,246.39/156,982.62
  6. Step 6: Final answer
    x = 124,170.54

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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.