Home / 147,163.14-203,105.76-85,929.36

Finding the Fourth Proportional to 147,163.14, 203,105.76 and 85,929.36

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Solution

The fourth proportional to 147,163.14, 203,105.76 and 85,929.36 is: 118,594.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,163.14 : 203,105.76 = 85,929.36 : x
  2. Step 2: Convert to fraction form
    147,163.14/203,105.76 = 85,929.36/x
  3. Step 3: Cross multiply
    147,163.14x = 203,105.76 × 85,929.36
  4. Step 4: Simplify right side
    147,163.14x = 17,452,747,969.11
  5. Step 5: Solve for x
    x = 17,452,747,969.11/147,163.14
  6. Step 6: Final answer
    x = 118,594.56

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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.