Home / 140,672.56-194,143.62-89,687.14

Finding the Fourth Proportional to 140,672.56, 194,143.62 and 89,687.14

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Solution

The fourth proportional to 140,672.56, 194,143.62 and 89,687.14 is: 123,778.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,672.56 : 194,143.62 = 89,687.14 : x
  2. Step 2: Convert to fraction form
    140,672.56/194,143.62 = 89,687.14/x
  3. Step 3: Cross multiply
    140,672.56x = 194,143.62 × 89,687.14
  4. Step 4: Simplify right side
    140,672.56x = 17,412,186,027.05
  5. Step 5: Solve for x
    x = 17,412,186,027.05/140,672.56
  6. Step 6: Final answer
    x = 123,778.13

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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.