Home / 129,739.92-194,615.67-39,776.16

Finding the Fourth Proportional to 129,739.92, 194,615.67 and 39,776.16

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Solution

The fourth proportional to 129,739.92, 194,615.67 and 39,776.16 is: 59,666.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,739.92 : 194,615.67 = 39,776.16 : x
  2. Step 2: Convert to fraction form
    129,739.92/194,615.67 = 39,776.16/x
  3. Step 3: Cross multiply
    129,739.92x = 194,615.67 × 39,776.16
  4. Step 4: Simplify right side
    129,739.92x = 7,741,064,028.43
  5. Step 5: Solve for x
    x = 7,741,064,028.43/129,739.92
  6. Step 6: Final answer
    x = 59,666.02

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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.