Home / 189,534.03-261,556.80-108,977.30

Finding the Fourth Proportional to 189,534.03, 261,556.80 and 108,977.30

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Solution

The fourth proportional to 189,534.03, 261,556.80 and 108,977.30 is: 150,388.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,534.03 : 261,556.80 = 108,977.30 : x
  2. Step 2: Convert to fraction form
    189,534.03/261,556.80 = 108,977.30/x
  3. Step 3: Cross multiply
    189,534.03x = 261,556.80 × 108,977.30
  4. Step 4: Simplify right side
    189,534.03x = 28,503,753,860.64
  5. Step 5: Solve for x
    x = 28,503,753,860.64/189,534.03
  6. Step 6: Final answer
    x = 150,388.58

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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.