Home / 135,268.82-186,730.75-80,840.19

Finding the Fourth Proportional to 135,268.82, 186,730.75 and 80,840.19

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Solution

The fourth proportional to 135,268.82, 186,730.75 and 80,840.19 is: 111,595.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,268.82 : 186,730.75 = 80,840.19 : x
  2. Step 2: Convert to fraction form
    135,268.82/186,730.75 = 80,840.19/x
  3. Step 3: Cross multiply
    135,268.82x = 186,730.75 × 80,840.19
  4. Step 4: Simplify right side
    135,268.82x = 15,095,348,577.29
  5. Step 5: Solve for x
    x = 15,095,348,577.29/135,268.82
  6. Step 6: Final answer
    x = 111,595.19

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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.