Home / 103,083.46-142,255.19-62,797.21

Finding the Fourth Proportional to 103,083.46, 142,255.19 and 62,797.21

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Solution

The fourth proportional to 103,083.46, 142,255.19 and 62,797.21 is: 86,660.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,083.46 : 142,255.19 = 62,797.21 : x
  2. Step 2: Convert to fraction form
    103,083.46/142,255.19 = 62,797.21/x
  3. Step 3: Cross multiply
    103,083.46x = 142,255.19 × 62,797.21
  4. Step 4: Simplify right side
    103,083.46x = 8,933,228,841.37
  5. Step 5: Solve for x
    x = 8,933,228,841.37/103,083.46
  6. Step 6: Final answer
    x = 86,660.16

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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.