Home / 189,634.89-261,685.31-113,240.19

Finding the Fourth Proportional to 189,634.89, 261,685.31 and 113,240.19

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Solution

The fourth proportional to 189,634.89, 261,685.31 and 113,240.19 is: 156,264.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,634.89 : 261,685.31 = 113,240.19 : x
  2. Step 2: Convert to fraction form
    189,634.89/261,685.31 = 113,240.19/x
  3. Step 3: Cross multiply
    189,634.89x = 261,685.31 × 113,240.19
  4. Step 4: Simplify right side
    189,634.89x = 29,633,293,658.41
  5. Step 5: Solve for x
    x = 29,633,293,658.41/189,634.89
  6. Step 6: Final answer
    x = 156,264.99

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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.