Home / 140,634.72-194,076.36-76,976.64

Finding the Fourth Proportional to 140,634.72, 194,076.36 and 76,976.64

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Solution

The fourth proportional to 140,634.72, 194,076.36 and 76,976.64 is: 106,228.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,634.72 : 194,076.36 = 76,976.64 : x
  2. Step 2: Convert to fraction form
    140,634.72/194,076.36 = 76,976.64/x
  3. Step 3: Cross multiply
    140,634.72x = 194,076.36 × 76,976.64
  4. Step 4: Simplify right side
    140,634.72x = 14,939,346,096.23
  5. Step 5: Solve for x
    x = 14,939,346,096.23/140,634.72
  6. Step 6: Final answer
    x = 106,228.01

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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.