Home / 140,648.88-194,095.44-76,986.72

Finding the Fourth Proportional to 140,648.88, 194,095.44 and 76,986.72

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Solution

The fourth proportional to 140,648.88, 194,095.44 and 76,986.72 is: 106,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,648.88 : 194,095.44 = 76,986.72 : x
  2. Step 2: Convert to fraction form
    140,648.88/194,095.44 = 76,986.72/x
  3. Step 3: Cross multiply
    140,648.88x = 194,095.44 × 76,986.72
  4. Step 4: Simplify right side
    140,648.88x = 14,942,771,292.56
  5. Step 5: Solve for x
    x = 14,942,771,292.56/140,648.88
  6. Step 6: Final answer
    x = 106,241.67

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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.