Home / 135,266.19-186,727.13-80,837.56

Finding the Fourth Proportional to 135,266.19, 186,727.13 and 80,837.56

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Solution

The fourth proportional to 135,266.19, 186,727.13 and 80,837.56 is: 111,591.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,266.19 : 186,727.13 = 80,837.56 : x
  2. Step 2: Convert to fraction form
    135,266.19/186,727.13 = 80,837.56/x
  3. Step 3: Cross multiply
    135,266.19x = 186,727.13 × 80,837.56
  4. Step 4: Simplify right side
    135,266.19x = 15,094,565,575.00
  5. Step 5: Solve for x
    x = 15,094,565,575.00/135,266.19
  6. Step 6: Final answer
    x = 111,591.56

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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.