Home / 135,266.69-186,727.82-80,838.06

Finding the Fourth Proportional to 135,266.69, 186,727.82 and 80,838.06

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Solution

The fourth proportional to 135,266.69, 186,727.82 and 80,838.06 is: 111,592.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,266.69 : 186,727.82 = 80,838.06 : x
  2. Step 2: Convert to fraction form
    135,266.69/186,727.82 = 80,838.06/x
  3. Step 3: Cross multiply
    135,266.69x = 186,727.82 × 80,838.06
  4. Step 4: Simplify right side
    135,266.69x = 15,094,714,716.83
  5. Step 5: Solve for x
    x = 15,094,714,716.83/135,266.69
  6. Step 6: Final answer
    x = 111,592.25

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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.