Home / 103,870.97-143,339.91-58,548.09

Finding the Fourth Proportional to 103,870.97, 143,339.91 and 58,548.09

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Solution

The fourth proportional to 103,870.97, 143,339.91 and 58,548.09 is: 80,795.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,870.97 : 143,339.91 = 58,548.09 : x
  2. Step 2: Convert to fraction form
    103,870.97/143,339.91 = 58,548.09/x
  3. Step 3: Cross multiply
    103,870.97x = 143,339.91 × 58,548.09
  4. Step 4: Simplify right side
    103,870.97x = 8,392,278,195.43
  5. Step 5: Solve for x
    x = 8,392,278,195.43/103,870.97
  6. Step 6: Final answer
    x = 80,795.23

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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.