Home / 189,167.37-261,063.94-115,611.43

Finding the Fourth Proportional to 189,167.37, 261,063.94 and 115,611.43

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Solution

The fourth proportional to 189,167.37, 261,063.94 and 115,611.43 is: 159,551.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,167.37 : 261,063.94 = 115,611.43 : x
  2. Step 2: Convert to fraction form
    189,167.37/261,063.94 = 115,611.43/x
  3. Step 3: Cross multiply
    189,167.37x = 261,063.94 × 115,611.43
  4. Step 4: Simplify right side
    189,167.37x = 30,181,974,130.01
  5. Step 5: Solve for x
    x = 30,181,974,130.01/189,167.37
  6. Step 6: Final answer
    x = 159,551.69

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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.