Home / 156,608.46-216,121.26-84,989.10

Finding the Fourth Proportional to 156,608.46, 216,121.26 and 84,989.10

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Solution

The fourth proportional to 156,608.46, 216,121.26 and 84,989.10 is: 117,285.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,608.46 : 216,121.26 = 84,989.10 : x
  2. Step 2: Convert to fraction form
    156,608.46/216,121.26 = 84,989.10/x
  3. Step 3: Cross multiply
    156,608.46x = 216,121.26 × 84,989.10
  4. Step 4: Simplify right side
    156,608.46x = 18,367,951,378.27
  5. Step 5: Solve for x
    x = 18,367,951,378.27/156,608.46
  6. Step 6: Final answer
    x = 117,285.82

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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.