Home / 131,163.51-196,337.99-71,042.66

Finding the Fourth Proportional to 131,163.51, 196,337.99 and 71,042.66

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Solution

The fourth proportional to 131,163.51, 196,337.99 and 71,042.66 is: 106,343.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,163.51 : 196,337.99 = 71,042.66 : x
  2. Step 2: Convert to fraction form
    131,163.51/196,337.99 = 71,042.66/x
  3. Step 3: Cross multiply
    131,163.51x = 196,337.99 × 71,042.66
  4. Step 4: Simplify right side
    131,163.51x = 13,948,373,068.65
  5. Step 5: Solve for x
    x = 13,948,373,068.65/131,163.51
  6. Step 6: Final answer
    x = 106,343.40

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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.