Home / 131,174.72-196,772.90-42,442.48

Finding the Fourth Proportional to 131,174.72, 196,772.90 and 42,442.48

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Solution

The fourth proportional to 131,174.72, 196,772.90 and 42,442.48 is: 63,667.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,174.72 : 196,772.90 = 42,442.48 : x
  2. Step 2: Convert to fraction form
    131,174.72/196,772.90 = 42,442.48/x
  3. Step 3: Cross multiply
    131,174.72x = 196,772.90 × 42,442.48
  4. Step 4: Simplify right side
    131,174.72x = 8,351,529,872.79
  5. Step 5: Solve for x
    x = 8,351,529,872.79/131,174.72
  6. Step 6: Final answer
    x = 63,667.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.