Home / 134,878.57-186,132.44-74,449.22

Finding the Fourth Proportional to 134,878.57, 186,132.44 and 74,449.22

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Solution

The fourth proportional to 134,878.57, 186,132.44 and 74,449.22 is: 102,739.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,878.57 : 186,132.44 = 74,449.22 : x
  2. Step 2: Convert to fraction form
    134,878.57/186,132.44 = 74,449.22/x
  3. Step 3: Cross multiply
    134,878.57x = 186,132.44 × 74,449.22
  4. Step 4: Simplify right side
    134,878.57x = 13,857,414,974.70
  5. Step 5: Solve for x
    x = 13,857,414,974.70/134,878.57
  6. Step 6: Final answer
    x = 102,739.93

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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.