Home / 129,485.90-194,229.30-35,991.56

Finding the Fourth Proportional to 129,485.90, 194,229.30 and 35,991.56

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Solution

The fourth proportional to 129,485.90, 194,229.30 and 35,991.56 is: 53,987.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,485.90 : 194,229.30 = 35,991.56 : x
  2. Step 2: Convert to fraction form
    129,485.90/194,229.30 = 35,991.56/x
  3. Step 3: Cross multiply
    129,485.90x = 194,229.30 × 35,991.56
  4. Step 4: Simplify right side
    129,485.90x = 6,990,615,504.71
  5. Step 5: Solve for x
    x = 6,990,615,504.71/129,485.90
  6. Step 6: Final answer
    x = 53,987.47

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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.