Home / 185,916.70-256,564.34-105,359.56

Finding the Fourth Proportional to 185,916.70, 256,564.34 and 105,359.56

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Solution

The fourth proportional to 185,916.70, 256,564.34 and 105,359.56 is: 145,395.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,916.70 : 256,564.34 = 105,359.56 : x
  2. Step 2: Convert to fraction form
    185,916.70/256,564.34 = 105,359.56/x
  3. Step 3: Cross multiply
    185,916.70x = 256,564.34 × 105,359.56
  4. Step 4: Simplify right side
    185,916.70x = 27,031,505,974.09
  5. Step 5: Solve for x
    x = 27,031,505,974.09/185,916.70
  6. Step 6: Final answer
    x = 145,395.79

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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.