Home / 123,806.36-170,993.46-83,450.48

Finding the Fourth Proportional to 123,806.36, 170,993.46 and 83,450.48

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Solution

The fourth proportional to 123,806.36, 170,993.46 and 83,450.48 is: 115,256.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,806.36 : 170,993.46 = 83,450.48 : x
  2. Step 2: Convert to fraction form
    123,806.36/170,993.46 = 83,450.48/x
  3. Step 3: Cross multiply
    123,806.36x = 170,993.46 × 83,450.48
  4. Step 4: Simplify right side
    123,806.36x = 14,269,486,313.86
  5. Step 5: Solve for x
    x = 14,269,486,313.86/123,806.36
  6. Step 6: Final answer
    x = 115,256.49

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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.