Home / 189,218.20-261,242.82-117,695.56

Finding the Fourth Proportional to 189,218.20, 261,242.82 and 117,695.56

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Solution

The fourth proportional to 189,218.20, 261,242.82 and 117,695.56 is: 162,495.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,218.20 : 261,242.82 = 117,695.56 : x
  2. Step 2: Convert to fraction form
    189,218.20/261,242.82 = 117,695.56/x
  3. Step 3: Cross multiply
    189,218.20x = 261,242.82 × 117,695.56
  4. Step 4: Simplify right side
    189,218.20x = 30,747,119,995.88
  5. Step 5: Solve for x
    x = 30,747,119,995.88/189,218.20
  6. Step 6: Final answer
    x = 162,495.57

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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.