Home / 123,750.48-170,775.78-67,161.87

Finding the Fourth Proportional to 123,750.48, 170,775.78 and 67,161.87

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Solution

The fourth proportional to 123,750.48, 170,775.78 and 67,161.87 is: 92,683.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,750.48 : 170,775.78 = 67,161.87 : x
  2. Step 2: Convert to fraction form
    123,750.48/170,775.78 = 67,161.87/x
  3. Step 3: Cross multiply
    123,750.48x = 170,775.78 × 67,161.87
  4. Step 4: Simplify right side
    123,750.48x = 11,469,620,735.51
  5. Step 5: Solve for x
    x = 11,469,620,735.51/123,750.48
  6. Step 6: Final answer
    x = 92,683.44

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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.