Home / 135,330.39-186,775.73-77,958.56

Finding the Fourth Proportional to 135,330.39, 186,775.73 and 77,958.56

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Solution

The fourth proportional to 135,330.39, 186,775.73 and 77,958.56 is: 107,594.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,330.39 : 186,775.73 = 77,958.56 : x
  2. Step 2: Convert to fraction form
    135,330.39/186,775.73 = 77,958.56/x
  3. Step 3: Cross multiply
    135,330.39x = 186,775.73 × 77,958.56
  4. Step 4: Simplify right side
    135,330.39x = 14,560,766,953.75
  5. Step 5: Solve for x
    x = 14,560,766,953.75/135,330.39
  6. Step 6: Final answer
    x = 107,594.21

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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.