Home / 185,138.03-255,299.37-158,369.15

Finding the Fourth Proportional to 185,138.03, 255,299.37 and 158,369.15

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Solution

The fourth proportional to 185,138.03, 255,299.37 and 158,369.15 is: 218,385.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,138.03 : 255,299.37 = 158,369.15 : x
  2. Step 2: Convert to fraction form
    185,138.03/255,299.37 = 158,369.15/x
  3. Step 3: Cross multiply
    185,138.03x = 255,299.37 × 158,369.15
  4. Step 4: Simplify right side
    185,138.03x = 40,431,544,222.44
  5. Step 5: Solve for x
    x = 40,431,544,222.44/185,138.03
  6. Step 6: Final answer
    x = 218,385.95

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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.