Home / 131,438.98-197,174.85-51,466.62

Finding the Fourth Proportional to 131,438.98, 197,174.85 and 51,466.62

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Solution

The fourth proportional to 131,438.98, 197,174.85 and 51,466.62 is: 77,206.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,438.98 : 197,174.85 = 51,466.62 : x
  2. Step 2: Convert to fraction form
    131,438.98/197,174.85 = 51,466.62/x
  3. Step 3: Cross multiply
    131,438.98x = 197,174.85 × 51,466.62
  4. Step 4: Simplify right side
    131,438.98x = 10,147,923,078.51
  5. Step 5: Solve for x
    x = 10,147,923,078.51/131,438.98
  6. Step 6: Final answer
    x = 77,206.34

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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.