Home / 107,645.14-148,591.63-80,865.33

Finding the Fourth Proportional to 107,645.14, 148,591.63 and 80,865.33

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Solution

The fourth proportional to 107,645.14, 148,591.63 and 80,865.33 is: 111,625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,645.14 : 148,591.63 = 80,865.33 : x
  2. Step 2: Convert to fraction form
    107,645.14/148,591.63 = 80,865.33/x
  3. Step 3: Cross multiply
    107,645.14x = 148,591.63 × 80,865.33
  4. Step 4: Simplify right side
    107,645.14x = 12,015,911,195.19
  5. Step 5: Solve for x
    x = 12,015,911,195.19/107,645.14
  6. Step 6: Final answer
    x = 111,625.21

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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.