Home / 156,836.14-235,121.95-68,022.76

Finding the Fourth Proportional to 156,836.14, 235,121.95 and 68,022.76

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Solution

The fourth proportional to 156,836.14, 235,121.95 and 68,022.76 is: 101,976.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,836.14 : 235,121.95 = 68,022.76 : x
  2. Step 2: Convert to fraction form
    156,836.14/235,121.95 = 68,022.76/x
  3. Step 3: Cross multiply
    156,836.14x = 235,121.95 × 68,022.76
  4. Step 4: Simplify right side
    156,836.14x = 15,993,642,799.97
  5. Step 5: Solve for x
    x = 15,993,642,799.97/156,836.14
  6. Step 6: Final answer
    x = 101,976.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.