Home / 140,756.88-194,237.22-77,082.42

Finding the Fourth Proportional to 140,756.88, 194,237.22 and 77,082.42

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Solution

The fourth proportional to 140,756.88, 194,237.22 and 77,082.42 is: 106,369.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,756.88 : 194,237.22 = 77,082.42 : x
  2. Step 2: Convert to fraction form
    140,756.88/194,237.22 = 77,082.42/x
  3. Step 3: Cross multiply
    140,756.88x = 194,237.22 × 77,082.42
  4. Step 4: Simplify right side
    140,756.88x = 14,972,274,971.67
  5. Step 5: Solve for x
    x = 14,972,274,971.67/140,756.88
  6. Step 6: Final answer
    x = 106,369.76

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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.