Home / 129,450.69-194,222.61-45,223.25

Finding the Fourth Proportional to 129,450.69, 194,222.61 and 45,223.25

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Solution

The fourth proportional to 129,450.69, 194,222.61 and 45,223.25 is: 67,851.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,450.69 : 194,222.61 = 45,223.25 : x
  2. Step 2: Convert to fraction form
    129,450.69/194,222.61 = 45,223.25/x
  3. Step 3: Cross multiply
    129,450.69x = 194,222.61 × 45,223.25
  4. Step 4: Simplify right side
    129,450.69x = 8,783,376,676.57
  5. Step 5: Solve for x
    x = 8,783,376,676.57/129,450.69
  6. Step 6: Final answer
    x = 67,851.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.