Home / 139,757.03-192,922.66-105,775.00

Finding the Fourth Proportional to 139,757.03, 192,922.66 and 105,775.00

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Solution

The fourth proportional to 139,757.03, 192,922.66 and 105,775.00 is: 146,013.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,757.03 : 192,922.66 = 105,775.00 : x
  2. Step 2: Convert to fraction form
    139,757.03/192,922.66 = 105,775.00/x
  3. Step 3: Cross multiply
    139,757.03x = 192,922.66 × 105,775.00
  4. Step 4: Simplify right side
    139,757.03x = 20,406,394,011.41
  5. Step 5: Solve for x
    x = 20,406,394,011.41/139,757.03
  6. Step 6: Final answer
    x = 146,013.36

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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.