Home / 140,777.64-194,273.70-77,115.88

Finding the Fourth Proportional to 140,777.64, 194,273.70 and 77,115.88

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Solution

The fourth proportional to 140,777.64, 194,273.70 and 77,115.88 is: 106,420.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,777.64 : 194,273.70 = 77,115.88 : x
  2. Step 2: Convert to fraction form
    140,777.64/194,273.70 = 77,115.88/x
  3. Step 3: Cross multiply
    140,777.64x = 194,273.70 × 77,115.88
  4. Step 4: Simplify right side
    140,777.64x = 14,981,587,336.36
  5. Step 5: Solve for x
    x = 14,981,587,336.36/140,777.64
  6. Step 6: Final answer
    x = 106,420.22

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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.