Home / 185,018.67-255,325.75-100,135.73

Finding the Fourth Proportional to 185,018.67, 255,325.75 and 100,135.73

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Solution

The fourth proportional to 185,018.67, 255,325.75 and 100,135.73 is: 138,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,018.67 : 255,325.75 = 100,135.73 : x
  2. Step 2: Convert to fraction form
    185,018.67/255,325.75 = 100,135.73/x
  3. Step 3: Cross multiply
    185,018.67x = 255,325.75 × 100,135.73
  4. Step 4: Simplify right side
    185,018.67x = 25,567,229,087.42
  5. Step 5: Solve for x
    x = 25,567,229,087.42/185,018.67
  6. Step 6: Final answer
    x = 138,187.30

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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.