Home / 156,930.46-216,562.68-85,310.26

Finding the Fourth Proportional to 156,930.46, 216,562.68 and 85,310.26

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Solution

The fourth proportional to 156,930.46, 216,562.68 and 85,310.26 is: 117,727.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,930.46 : 216,562.68 = 85,310.26 : x
  2. Step 2: Convert to fraction form
    156,930.46/216,562.68 = 85,310.26/x
  3. Step 3: Cross multiply
    156,930.46x = 216,562.68 × 85,310.26
  4. Step 4: Simplify right side
    156,930.46x = 18,475,018,537.10
  5. Step 5: Solve for x
    x = 18,475,018,537.10/156,930.46
  6. Step 6: Final answer
    x = 117,727.42

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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.