Home / 140,724.42-194,193-77,062.56

Finding the Fourth Proportional to 140,724.42, 194,193 and 77,062.56

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Solution

The fourth proportional to 140,724.42, 194,193 and 77,062.56 is: 106,342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,724.42 : 194,193 = 77,062.56 : x
  2. Step 2: Convert to fraction form
    140,724.42/194,193 = 77,062.56/x
  3. Step 3: Cross multiply
    140,724.42x = 194,193 × 77,062.56
  4. Step 4: Simplify right side
    140,724.42x = 14,965,009,714.08
  5. Step 5: Solve for x
    x = 14,965,009,714.08/140,724.42
  6. Step 6: Final answer
    x = 106,342.66

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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.