Home / 131,027.10-196,540.65-86,703.90

Finding the Fourth Proportional to 131,027.10, 196,540.65 and 86,703.90

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Solution

The fourth proportional to 131,027.10, 196,540.65 and 86,703.90 is: 130,055.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,027.10 : 196,540.65 = 86,703.90 : x
  2. Step 2: Convert to fraction form
    131,027.10/196,540.65 = 86,703.90/x
  3. Step 3: Cross multiply
    131,027.10x = 196,540.65 × 86,703.90
  4. Step 4: Simplify right side
    131,027.10x = 17,040,840,863.54
  5. Step 5: Solve for x
    x = 17,040,840,863.54/131,027.10
  6. Step 6: Final answer
    x = 130,055.85

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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.