Home / 140,986.52-194,561.45-76,455.74

Finding the Fourth Proportional to 140,986.52, 194,561.45 and 76,455.74

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Solution

The fourth proportional to 140,986.52, 194,561.45 and 76,455.74 is: 105,508.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,986.52 : 194,561.45 = 76,455.74 : x
  2. Step 2: Convert to fraction form
    140,986.52/194,561.45 = 76,455.74/x
  3. Step 3: Cross multiply
    140,986.52x = 194,561.45 × 76,455.74
  4. Step 4: Simplify right side
    140,986.52x = 14,875,339,252.94
  5. Step 5: Solve for x
    x = 14,875,339,252.94/140,986.52
  6. Step 6: Final answer
    x = 105,508.95

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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.