Home / 130,857.68-196,121.87-70,883.85

Finding the Fourth Proportional to 130,857.68, 196,121.87 and 70,883.85

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Solution

The fourth proportional to 130,857.68, 196,121.87 and 70,883.85 is: 106,236.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,857.68 : 196,121.87 = 70,883.85 : x
  2. Step 2: Convert to fraction form
    130,857.68/196,121.87 = 70,883.85/x
  3. Step 3: Cross multiply
    130,857.68x = 196,121.87 × 70,883.85
  4. Step 4: Simplify right side
    130,857.68x = 13,901,872,860.38
  5. Step 5: Solve for x
    x = 13,901,872,860.38/130,857.68
  6. Step 6: Final answer
    x = 106,236.59

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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.