Home / 123,629.15-170,608.32-67,040.51

Finding the Fourth Proportional to 123,629.15, 170,608.32 and 67,040.51

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Solution

The fourth proportional to 123,629.15, 170,608.32 and 67,040.51 is: 92,515.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,629.15 : 170,608.32 = 67,040.51 : x
  2. Step 2: Convert to fraction form
    123,629.15/170,608.32 = 67,040.51/x
  3. Step 3: Cross multiply
    123,629.15x = 170,608.32 × 67,040.51
  4. Step 4: Simplify right side
    123,629.15x = 11,437,668,783.04
  5. Step 5: Solve for x
    x = 11,437,668,783.04/123,629.15
  6. Step 6: Final answer
    x = 92,515.95

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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.