Home / 106,008.96-146,138.22-74,078.76

Finding the Fourth Proportional to 106,008.96, 146,138.22 and 74,078.76

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Solution

The fourth proportional to 106,008.96, 146,138.22 and 74,078.76 is: 102,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,008.96 : 146,138.22 = 74,078.76 : x
  2. Step 2: Convert to fraction form
    106,008.96/146,138.22 = 74,078.76/x
  3. Step 3: Cross multiply
    106,008.96x = 146,138.22 × 74,078.76
  4. Step 4: Simplify right side
    106,008.96x = 10,825,738,126.21
  5. Step 5: Solve for x
    x = 10,825,738,126.21/106,008.96
  6. Step 6: Final answer
    x = 102,120.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.