Home / 129,933.60-194,965.20-73,816.80

Finding the Fourth Proportional to 129,933.60, 194,965.20 and 73,816.80

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Solution

The fourth proportional to 129,933.60, 194,965.20 and 73,816.80 is: 110,762.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,933.60 : 194,965.20 = 73,816.80 : x
  2. Step 2: Convert to fraction form
    129,933.60/194,965.20 = 73,816.80/x
  3. Step 3: Cross multiply
    129,933.60x = 194,965.20 × 73,816.80
  4. Step 4: Simplify right side
    129,933.60x = 14,391,707,175.36
  5. Step 5: Solve for x
    x = 14,391,707,175.36/129,933.60
  6. Step 6: Final answer
    x = 110,762.01

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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.