Home / 106,007.96-146,136.84-74,077.76

Finding the Fourth Proportional to 106,007.96, 146,136.84 and 74,077.76

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Solution

The fourth proportional to 106,007.96, 146,136.84 and 74,077.76 is: 102,119.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,007.96 : 146,136.84 = 74,077.76 : x
  2. Step 2: Convert to fraction form
    106,007.96/146,136.84 = 74,077.76/x
  3. Step 3: Cross multiply
    106,007.96x = 146,136.84 × 74,077.76
  4. Step 4: Simplify right side
    106,007.96x = 10,825,489,760.68
  5. Step 5: Solve for x
    x = 10,825,489,760.68/106,007.96
  6. Step 6: Final answer
    x = 102,119.59

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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.