Home / 189,534.53-261,557.49-108,977.80

Finding the Fourth Proportional to 189,534.53, 261,557.49 and 108,977.80

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Solution

The fourth proportional to 189,534.53, 261,557.49 and 108,977.80 is: 150,389.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,534.53 : 261,557.49 = 108,977.80 : x
  2. Step 2: Convert to fraction form
    189,534.53/261,557.49 = 108,977.80/x
  3. Step 3: Cross multiply
    189,534.53x = 261,557.49 × 108,977.80
  4. Step 4: Simplify right side
    189,534.53x = 28,503,959,833.72
  5. Step 5: Solve for x
    x = 28,503,959,833.72/189,534.53
  6. Step 6: Final answer
    x = 150,389.27

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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.