Home / 135,141.11-186,493.69-74,714.30

Finding the Fourth Proportional to 135,141.11, 186,493.69 and 74,714.30

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Solution

The fourth proportional to 135,141.11, 186,493.69 and 74,714.30 is: 103,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,141.11 : 186,493.69 = 74,714.30 : x
  2. Step 2: Convert to fraction form
    135,141.11/186,493.69 = 74,714.30/x
  3. Step 3: Cross multiply
    135,141.11x = 186,493.69 × 74,714.30
  4. Step 4: Simplify right side
    135,141.11x = 13,933,745,363.04
  5. Step 5: Solve for x
    x = 13,933,745,363.04/135,141.11
  6. Step 6: Final answer
    x = 103,105.16

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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.