Home / 185,369.46-278,076.06-138,917.58

Finding the Fourth Proportional to 185,369.46, 278,076.06 and 138,917.58

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Solution

The fourth proportional to 185,369.46, 278,076.06 and 138,917.58 is: 208,392.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,369.46 : 278,076.06 = 138,917.58 : x
  2. Step 2: Convert to fraction form
    185,369.46/278,076.06 = 138,917.58/x
  3. Step 3: Cross multiply
    185,369.46x = 278,076.06 × 138,917.58
  4. Step 4: Simplify right side
    185,369.46x = 38,629,653,311.13
  5. Step 5: Solve for x
    x = 38,629,653,311.13/185,369.46
  6. Step 6: Final answer
    x = 208,392.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.