Home / 185,855.04-256,520.70-122,198.76

Finding the Fourth Proportional to 185,855.04, 256,520.70 and 122,198.76

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Solution

The fourth proportional to 185,855.04, 256,520.70 and 122,198.76 is: 168,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,855.04 : 256,520.70 = 122,198.76 : x
  2. Step 2: Convert to fraction form
    185,855.04/256,520.70 = 122,198.76/x
  3. Step 3: Cross multiply
    185,855.04x = 256,520.70 × 122,198.76
  4. Step 4: Simplify right side
    185,855.04x = 31,346,511,454.33
  5. Step 5: Solve for x
    x = 31,346,511,454.33/185,855.04
  6. Step 6: Final answer
    x = 168,661.08

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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.