Home / 140,601.76-194,030.45-76,939.57

Finding the Fourth Proportional to 140,601.76, 194,030.45 and 76,939.57

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Solution

The fourth proportional to 140,601.76, 194,030.45 and 76,939.57 is: 106,176.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,601.76 : 194,030.45 = 76,939.57 : x
  2. Step 2: Convert to fraction form
    140,601.76/194,030.45 = 76,939.57/x
  3. Step 3: Cross multiply
    140,601.76x = 194,030.45 × 76,939.57
  4. Step 4: Simplify right side
    140,601.76x = 14,928,619,389.91
  5. Step 5: Solve for x
    x = 14,928,619,389.91/140,601.76
  6. Step 6: Final answer
    x = 106,176.62

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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.