Home / 129,635.80-194,453.70-100,111.30

Finding the Fourth Proportional to 129,635.80, 194,453.70 and 100,111.30

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Solution

The fourth proportional to 129,635.80, 194,453.70 and 100,111.30 is: 150,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,635.80 : 194,453.70 = 100,111.30 : x
  2. Step 2: Convert to fraction form
    129,635.80/194,453.70 = 100,111.30/x
  3. Step 3: Cross multiply
    129,635.80x = 194,453.70 × 100,111.30
  4. Step 4: Simplify right side
    129,635.80x = 19,467,012,696.81
  5. Step 5: Solve for x
    x = 19,467,012,696.81/129,635.80
  6. Step 6: Final answer
    x = 150,166.95

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1.5x scale

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.