Home / 140,815.91-194,348.90-80,389.10

Finding the Fourth Proportional to 140,815.91, 194,348.90 and 80,389.10

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Solution

The fourth proportional to 140,815.91, 194,348.90 and 80,389.10 is: 110,950.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,815.91 : 194,348.90 = 80,389.10 : x
  2. Step 2: Convert to fraction form
    140,815.91/194,348.90 = 80,389.10/x
  3. Step 3: Cross multiply
    140,815.91x = 194,348.90 × 80,389.10
  4. Step 4: Simplify right side
    140,815.91x = 15,623,533,156.99
  5. Step 5: Solve for x
    x = 15,623,533,156.99/140,815.91
  6. Step 6: Final answer
    x = 110,950.06

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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.