Home / 170,147.28-255,278.64-75,364.73

Finding the Fourth Proportional to 170,147.28, 255,278.64 and 75,364.73

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Solution

The fourth proportional to 170,147.28, 255,278.64 and 75,364.73 is: 113,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,147.28 : 255,278.64 = 75,364.73 : x
  2. Step 2: Convert to fraction form
    170,147.28/255,278.64 = 75,364.73/x
  3. Step 3: Cross multiply
    170,147.28x = 255,278.64 × 75,364.73
  4. Step 4: Simplify right side
    170,147.28x = 19,239,004,501.97
  5. Step 5: Solve for x
    x = 19,239,004,501.97/170,147.28
  6. Step 6: Final answer
    x = 113,072.65

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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.