Home / 147,185.28-203,143.68-83,529

Finding the Fourth Proportional to 147,185.28, 203,143.68 and 83,529

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Solution

The fourth proportional to 147,185.28, 203,143.68 and 83,529 is: 115,285.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,185.28 : 203,143.68 = 83,529 : x
  2. Step 2: Convert to fraction form
    147,185.28/203,143.68 = 83,529/x
  3. Step 3: Cross multiply
    147,185.28x = 203,143.68 × 83,529
  4. Step 4: Simplify right side
    147,185.28x = 16,968,388,446.72
  5. Step 5: Solve for x
    x = 16,968,388,446.72/147,185.28
  6. Step 6: Final answer
    x = 115,285.91

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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.