Home / 189,215.30-261,107.20-117,593.75

Finding the Fourth Proportional to 189,215.30, 261,107.20 and 117,593.75

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Solution

The fourth proportional to 189,215.30, 261,107.20 and 117,593.75 is: 162,273.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,215.30 : 261,107.20 = 117,593.75 : x
  2. Step 2: Convert to fraction form
    189,215.30/261,107.20 = 117,593.75/x
  3. Step 3: Cross multiply
    189,215.30x = 261,107.20 × 117,593.75
  4. Step 4: Simplify right side
    189,215.30x = 30,704,574,800
  5. Step 5: Solve for x
    x = 30,704,574,800/189,215.30
  6. Step 6: Final answer
    x = 162,273.21

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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.