Home / 129,217.36-193,945.98-66,082.60

Finding the Fourth Proportional to 129,217.36, 193,945.98 and 66,082.60

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Solution

The fourth proportional to 129,217.36, 193,945.98 and 66,082.60 is: 99,185.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,217.36 : 193,945.98 = 66,082.60 : x
  2. Step 2: Convert to fraction form
    129,217.36/193,945.98 = 66,082.60/x
  3. Step 3: Cross multiply
    129,217.36x = 193,945.98 × 66,082.60
  4. Step 4: Simplify right side
    129,217.36x = 12,816,453,987.96
  5. Step 5: Solve for x
    x = 12,816,453,987.96/129,217.36
  6. Step 6: Final answer
    x = 99,185.24

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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.