Home / 131,891.46-181,909.74-113,525.83

Finding the Fourth Proportional to 131,891.46, 181,909.74 and 113,525.83

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Solution

The fourth proportional to 131,891.46, 181,909.74 and 113,525.83 is: 156,579.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,891.46 : 181,909.74 = 113,525.83 : x
  2. Step 2: Convert to fraction form
    131,891.46/181,909.74 = 113,525.83/x
  3. Step 3: Cross multiply
    131,891.46x = 181,909.74 × 113,525.83
  4. Step 4: Simplify right side
    131,891.46x = 20,651,454,218.58
  5. Step 5: Solve for x
    x = 20,651,454,218.58/131,891.46
  6. Step 6: Final answer
    x = 156,579.16

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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.