Home / 103,441.19-142,740-58,115.61

Finding the Fourth Proportional to 103,441.19, 142,740 and 58,115.61

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Solution

The fourth proportional to 103,441.19, 142,740 and 58,115.61 is: 80,194.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,441.19 : 142,740 = 58,115.61 : x
  2. Step 2: Convert to fraction form
    103,441.19/142,740 = 58,115.61/x
  3. Step 3: Cross multiply
    103,441.19x = 142,740 × 58,115.61
  4. Step 4: Simplify right side
    103,441.19x = 8,295,422,171.40
  5. Step 5: Solve for x
    x = 8,295,422,171.40/103,441.19
  6. Step 6: Final answer
    x = 80,194.58

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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.