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Finding the Fourth Proportional to 143,750.36, 198,375.70 and 80,090.38

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Solution

The fourth proportional to 143,750.36, 198,375.70 and 80,090.38 is: 110,524.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,750.36 : 198,375.70 = 80,090.38 : x
  2. Step 2: Convert to fraction form
    143,750.36/198,375.70 = 80,090.38/x
  3. Step 3: Cross multiply
    143,750.36x = 198,375.70 × 80,090.38
  4. Step 4: Simplify right side
    143,750.36x = 15,887,985,195.77
  5. Step 5: Solve for x
    x = 15,887,985,195.77/143,750.36
  6. Step 6: Final answer
    x = 110,524.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.