Home / 135,028.44-186,355.08-81,340.56

Finding the Fourth Proportional to 135,028.44, 186,355.08 and 81,340.56

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Solution

The fourth proportional to 135,028.44, 186,355.08 and 81,340.56 is: 112,259.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,028.44 : 186,355.08 = 81,340.56 : x
  2. Step 2: Convert to fraction form
    135,028.44/186,355.08 = 81,340.56/x
  3. Step 3: Cross multiply
    135,028.44x = 186,355.08 × 81,340.56
  4. Step 4: Simplify right side
    135,028.44x = 15,158,226,566.04
  5. Step 5: Solve for x
    x = 15,158,226,566.04/135,028.44
  6. Step 6: Final answer
    x = 112,259.51

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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.