Home / 129,453.88-194,180.82-74,011

Finding the Fourth Proportional to 129,453.88, 194,180.82 and 74,011

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Solution

The fourth proportional to 129,453.88, 194,180.82 and 74,011 is: 111,016.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,453.88 : 194,180.82 = 74,011 : x
  2. Step 2: Convert to fraction form
    129,453.88/194,180.82 = 74,011/x
  3. Step 3: Cross multiply
    129,453.88x = 194,180.82 × 74,011
  4. Step 4: Simplify right side
    129,453.88x = 14,371,516,669.02
  5. Step 5: Solve for x
    x = 14,371,516,669.02/129,453.88
  6. Step 6: Final answer
    x = 111,016.50

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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.