Home / 130,935.21-196,488.92-71,812.38

Finding the Fourth Proportional to 130,935.21, 196,488.92 and 71,812.38

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Solution

The fourth proportional to 130,935.21, 196,488.92 and 71,812.38 is: 107,765.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,935.21 : 196,488.92 = 71,812.38 : x
  2. Step 2: Convert to fraction form
    130,935.21/196,488.92 = 71,812.38/x
  3. Step 3: Cross multiply
    130,935.21x = 196,488.92 × 71,812.38
  4. Step 4: Simplify right side
    130,935.21x = 14,110,336,629.77
  5. Step 5: Solve for x
    x = 14,110,336,629.77/130,935.21
  6. Step 6: Final answer
    x = 107,765.79

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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.