Home / 106,140.76-159,185.62-31,240.56

Finding the Fourth Proportional to 106,140.76, 159,185.62 and 31,240.56

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Solution

The fourth proportional to 106,140.76, 159,185.62 and 31,240.56 is: 46,853.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,140.76 : 159,185.62 = 31,240.56 : x
  2. Step 2: Convert to fraction form
    106,140.76/159,185.62 = 31,240.56/x
  3. Step 3: Cross multiply
    106,140.76x = 159,185.62 × 31,240.56
  4. Step 4: Simplify right side
    106,140.76x = 4,973,047,912.75
  5. Step 5: Solve for x
    x = 4,973,047,912.75/106,140.76
  6. Step 6: Final answer
    x = 46,853.33

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1.5x scale

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.