Home / 134,736.69-185,949.78-100,686.05

Finding the Fourth Proportional to 134,736.69, 185,949.78 and 100,686.05

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Solution

The fourth proportional to 134,736.69, 185,949.78 and 100,686.05 is: 138,956.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,736.69 : 185,949.78 = 100,686.05 : x
  2. Step 2: Convert to fraction form
    134,736.69/185,949.78 = 100,686.05/x
  3. Step 3: Cross multiply
    134,736.69x = 185,949.78 × 100,686.05
  4. Step 4: Simplify right side
    134,736.69x = 18,722,548,343.14
  5. Step 5: Solve for x
    x = 18,722,548,343.14/134,736.69
  6. Step 6: Final answer
    x = 138,956.58

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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.