Home / 185,000.95-255,301.62-100,118.08

Finding the Fourth Proportional to 185,000.95, 255,301.62 and 100,118.08

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Solution

The fourth proportional to 185,000.95, 255,301.62 and 100,118.08 is: 138,163.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,000.95 : 255,301.62 = 100,118.08 : x
  2. Step 2: Convert to fraction form
    185,000.95/255,301.62 = 100,118.08/x
  3. Step 3: Cross multiply
    185,000.95x = 255,301.62 × 100,118.08
  4. Step 4: Simplify right side
    185,000.95x = 25,560,306,738.78
  5. Step 5: Solve for x
    x = 25,560,306,738.78/185,000.95
  6. Step 6: Final answer
    x = 138,163.11

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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.