Home / 124,020.51-171,147.49-67,431.88

Finding the Fourth Proportional to 124,020.51, 171,147.49 and 67,431.88

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Solution

The fourth proportional to 124,020.51, 171,147.49 and 67,431.88 is: 93,055.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,020.51 : 171,147.49 = 67,431.88 : x
  2. Step 2: Convert to fraction form
    124,020.51/171,147.49 = 67,431.88/x
  3. Step 3: Cross multiply
    124,020.51x = 171,147.49 × 67,431.88
  4. Step 4: Simplify right side
    124,020.51x = 11,540,797,007.98
  5. Step 5: Solve for x
    x = 11,540,797,007.98/124,020.51
  6. Step 6: Final answer
    x = 93,055.55

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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.