Home / 129,040.80-193,561.20-35,546.40

Finding the Fourth Proportional to 129,040.80, 193,561.20 and 35,546.40

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Solution

The fourth proportional to 129,040.80, 193,561.20 and 35,546.40 is: 53,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,040.80 : 193,561.20 = 35,546.40 : x
  2. Step 2: Convert to fraction form
    129,040.80/193,561.20 = 35,546.40/x
  3. Step 3: Cross multiply
    129,040.80x = 193,561.20 × 35,546.40
  4. Step 4: Simplify right side
    129,040.80x = 6,880,403,839.68
  5. Step 5: Solve for x
    x = 6,880,403,839.68/129,040.80
  6. Step 6: Final answer
    x = 53,319.60

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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.