Home / 129,809.61-194,715.98-45,571.89

Finding the Fourth Proportional to 129,809.61, 194,715.98 and 45,571.89

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Solution

The fourth proportional to 129,809.61, 194,715.98 and 45,571.89 is: 68,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,809.61 : 194,715.98 = 45,571.89 : x
  2. Step 2: Convert to fraction form
    129,809.61/194,715.98 = 45,571.89/x
  3. Step 3: Cross multiply
    129,809.61x = 194,715.98 × 45,571.89
  4. Step 4: Simplify right side
    129,809.61x = 8,873,574,993.94
  5. Step 5: Solve for x
    x = 8,873,574,993.94/129,809.61
  6. Step 6: Final answer
    x = 68,358.38

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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.