Home / 140,979.29-194,551.44-77,318.42

Finding the Fourth Proportional to 140,979.29, 194,551.44 and 77,318.42

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Solution

The fourth proportional to 140,979.29, 194,551.44 and 77,318.42 is: 106,699.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,979.29 : 194,551.44 = 77,318.42 : x
  2. Step 2: Convert to fraction form
    140,979.29/194,551.44 = 77,318.42/x
  3. Step 3: Cross multiply
    140,979.29x = 194,551.44 × 77,318.42
  4. Step 4: Simplify right side
    140,979.29x = 15,042,409,949.52
  5. Step 5: Solve for x
    x = 15,042,409,949.52/140,979.29
  6. Step 6: Final answer
    x = 106,699.43

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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.