Home / 129,615.36-194,450.16-54,735.68

Finding the Fourth Proportional to 129,615.36, 194,450.16 and 54,735.68

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Solution

The fourth proportional to 129,615.36, 194,450.16 and 54,735.68 is: 82,114.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,615.36 : 194,450.16 = 54,735.68 : x
  2. Step 2: Convert to fraction form
    129,615.36/194,450.16 = 54,735.68/x
  3. Step 3: Cross multiply
    129,615.36x = 194,450.16 × 54,735.68
  4. Step 4: Simplify right side
    129,615.36x = 10,643,361,733.71
  5. Step 5: Solve for x
    x = 10,643,361,733.71/129,615.36
  6. Step 6: Final answer
    x = 82,114.97

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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.