Home / 135,083.72-186,414.66-74,657.85

Finding the Fourth Proportional to 135,083.72, 186,414.66 and 74,657.85

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Solution

The fourth proportional to 135,083.72, 186,414.66 and 74,657.85 is: 103,027.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,083.72 : 186,414.66 = 74,657.85 : x
  2. Step 2: Convert to fraction form
    135,083.72/186,414.66 = 74,657.85/x
  3. Step 3: Cross multiply
    135,083.72x = 186,414.66 × 74,657.85
  4. Step 4: Simplify right side
    135,083.72x = 13,917,317,724.08
  5. Step 5: Solve for x
    x = 13,917,317,724.08/135,083.72
  6. Step 6: Final answer
    x = 103,027.35

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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.