Home / 103,135.15-142,327.97-62,850.61

Finding the Fourth Proportional to 103,135.15, 142,327.97 and 62,850.61

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Solution

The fourth proportional to 103,135.15, 142,327.97 and 62,850.61 is: 86,734.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,135.15 : 142,327.97 = 62,850.61 : x
  2. Step 2: Convert to fraction form
    103,135.15/142,327.97 = 62,850.61/x
  3. Step 3: Cross multiply
    103,135.15x = 142,327.97 × 62,850.61
  4. Step 4: Simplify right side
    103,135.15x = 8,945,399,420.31
  5. Step 5: Solve for x
    x = 8,945,399,420.31/103,135.15
  6. Step 6: Final answer
    x = 86,734.73

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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.