Home / 210,519.01-290,710.25-135,198.73

Finding the Fourth Proportional to 210,519.01, 290,710.25 and 135,198.73

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Solution

The fourth proportional to 210,519.01, 290,710.25 and 135,198.73 is: 186,698.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,519.01 : 290,710.25 = 135,198.73 : x
  2. Step 2: Convert to fraction form
    210,519.01/290,710.25 = 135,198.73/x
  3. Step 3: Cross multiply
    210,519.01x = 290,710.25 × 135,198.73
  4. Step 4: Simplify right side
    210,519.01x = 39,303,656,597.98
  5. Step 5: Solve for x
    x = 39,303,656,597.98/210,519.01
  6. Step 6: Final answer
    x = 186,698.85

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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.