Home / 185,286.78-255,601.85-117,189.07

Finding the Fourth Proportional to 185,286.78, 255,601.85 and 117,189.07

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Solution

The fourth proportional to 185,286.78, 255,601.85 and 117,189.07 is: 161,661.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,286.78 : 255,601.85 = 117,189.07 : x
  2. Step 2: Convert to fraction form
    185,286.78/255,601.85 = 117,189.07/x
  3. Step 3: Cross multiply
    185,286.78x = 255,601.85 × 117,189.07
  4. Step 4: Simplify right side
    185,286.78x = 29,953,741,866.83
  5. Step 5: Solve for x
    x = 29,953,741,866.83/185,286.78
  6. Step 6: Final answer
    x = 161,661.52

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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.