Home / 161,436.66-242,154.57-76,940.70

Finding the Fourth Proportional to 161,436.66, 242,154.57 and 76,940.70

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Solution

The fourth proportional to 161,436.66, 242,154.57 and 76,940.70 is: 115,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,436.66 : 242,154.57 = 76,940.70 : x
  2. Step 2: Convert to fraction form
    161,436.66/242,154.57 = 76,940.70/x
  3. Step 3: Cross multiply
    161,436.66x = 242,154.57 × 76,940.70
  4. Step 4: Simplify right side
    161,436.66x = 18,631,542,124.00
  5. Step 5: Solve for x
    x = 18,631,542,124.00/161,436.66
  6. Step 6: Final answer
    x = 115,410.85

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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.