Home / 129,718.40-194,577.60-74,268.80

Finding the Fourth Proportional to 129,718.40, 194,577.60 and 74,268.80

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Solution

The fourth proportional to 129,718.40, 194,577.60 and 74,268.80 is: 111,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,718.40 : 194,577.60 = 74,268.80 : x
  2. Step 2: Convert to fraction form
    129,718.40/194,577.60 = 74,268.80/x
  3. Step 3: Cross multiply
    129,718.40x = 194,577.60 × 74,268.80
  4. Step 4: Simplify right side
    129,718.40x = 14,451,044,858.88
  5. Step 5: Solve for x
    x = 14,451,044,858.88/129,718.40
  6. Step 6: Final answer
    x = 111,403.20

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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.