Home / 133,273.87-183,937.97-81,621.79

Finding the Fourth Proportional to 133,273.87, 183,937.97 and 81,621.79

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Solution

The fourth proportional to 133,273.87, 183,937.97 and 81,621.79 is: 112,650.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,273.87 : 183,937.97 = 81,621.79 : x
  2. Step 2: Convert to fraction form
    133,273.87/183,937.97 = 81,621.79/x
  3. Step 3: Cross multiply
    133,273.87x = 183,937.97 × 81,621.79
  4. Step 4: Simplify right side
    133,273.87x = 15,013,346,104.58
  5. Step 5: Solve for x
    x = 15,013,346,104.58/133,273.87
  6. Step 6: Final answer
    x = 112,650.34

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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.