Home / 129,919.35-194,879.03-103,675.35

Finding the Fourth Proportional to 129,919.35, 194,879.03 and 103,675.35

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Solution

The fourth proportional to 129,919.35, 194,879.03 and 103,675.35 is: 155,513.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,919.35 : 194,879.03 = 103,675.35 : x
  2. Step 2: Convert to fraction form
    129,919.35/194,879.03 = 103,675.35/x
  3. Step 3: Cross multiply
    129,919.35x = 194,879.03 × 103,675.35
  4. Step 4: Simplify right side
    129,919.35x = 20,204,151,642.91
  5. Step 5: Solve for x
    x = 20,204,151,642.91/129,919.35
  6. Step 6: Final answer
    x = 155,513.03

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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.