Home / 131,939.85-197,904.92-57,078.84

Finding the Fourth Proportional to 131,939.85, 197,904.92 and 57,078.84

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Solution

The fourth proportional to 131,939.85, 197,904.92 and 57,078.84 is: 85,616.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,939.85 : 197,904.92 = 57,078.84 : x
  2. Step 2: Convert to fraction form
    131,939.85/197,904.92 = 57,078.84/x
  3. Step 3: Cross multiply
    131,939.85x = 197,904.92 × 57,078.84
  4. Step 4: Simplify right side
    131,939.85x = 11,296,182,978.50
  5. Step 5: Solve for x
    x = 11,296,182,978.50/131,939.85
  6. Step 6: Final answer
    x = 85,616.16

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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.