Home / 140,619.78-194,054.94-76,957.02

Finding the Fourth Proportional to 140,619.78, 194,054.94 and 76,957.02

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Solution

The fourth proportional to 140,619.78, 194,054.94 and 76,957.02 is: 106,200.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,619.78 : 194,054.94 = 76,957.02 : x
  2. Step 2: Convert to fraction form
    140,619.78/194,054.94 = 76,957.02/x
  3. Step 3: Cross multiply
    140,619.78x = 194,054.94 × 76,957.02
  4. Step 4: Simplify right side
    140,619.78x = 14,933,889,898.68
  5. Step 5: Solve for x
    x = 14,933,889,898.68/140,619.78
  6. Step 6: Final answer
    x = 106,200.49

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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.