Home / 75,908.12-103,993.64-73,069.46

Finding the Fourth Proportional to 75,908.12, 103,993.64 and 73,069.46

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Solution

The fourth proportional to 75,908.12, 103,993.64 and 73,069.46 is: 100,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,908.12 : 103,993.64 = 73,069.46 : x
  2. Step 2: Convert to fraction form
    75,908.12/103,993.64 = 73,069.46/x
  3. Step 3: Cross multiply
    75,908.12x = 103,993.64 × 73,069.46
  4. Step 4: Simplify right side
    75,908.12x = 7,598,759,560.89
  5. Step 5: Solve for x
    x = 7,598,759,560.89/75,908.12
  6. Step 6: Final answer
    x = 100,104.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.