Home / 140,883.56-194,439.23-87,185.87

Finding the Fourth Proportional to 140,883.56, 194,439.23 and 87,185.87

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Solution

The fourth proportional to 140,883.56, 194,439.23 and 87,185.87 is: 120,328.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,883.56 : 194,439.23 = 87,185.87 : x
  2. Step 2: Convert to fraction form
    140,883.56/194,439.23 = 87,185.87/x
  3. Step 3: Cross multiply
    140,883.56x = 194,439.23 × 87,185.87
  4. Step 4: Simplify right side
    140,883.56x = 16,952,352,993.75
  5. Step 5: Solve for x
    x = 16,952,352,993.75/140,883.56
  6. Step 6: Final answer
    x = 120,328.82

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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.