Home / 140,960.49-194,525.36-76,431.86

Finding the Fourth Proportional to 140,960.49, 194,525.36 and 76,431.86

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Solution

The fourth proportional to 140,960.49, 194,525.36 and 76,431.86 is: 105,475.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,960.49 : 194,525.36 = 76,431.86 : x
  2. Step 2: Convert to fraction form
    140,960.49/194,525.36 = 76,431.86/x
  3. Step 3: Cross multiply
    140,960.49x = 194,525.36 × 76,431.86
  4. Step 4: Simplify right side
    140,960.49x = 14,867,935,081.97
  5. Step 5: Solve for x
    x = 14,867,935,081.97/140,960.49
  6. Step 6: Final answer
    x = 105,475.90

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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.