Home / 133,241.14-199,762.89-80,638.12

Finding the Fourth Proportional to 133,241.14, 199,762.89 and 80,638.12

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Solution

The fourth proportional to 133,241.14, 199,762.89 and 80,638.12 is: 120,897.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,241.14 : 199,762.89 = 80,638.12 : x
  2. Step 2: Convert to fraction form
    133,241.14/199,762.89 = 80,638.12/x
  3. Step 3: Cross multiply
    133,241.14x = 199,762.89 × 80,638.12
  4. Step 4: Simplify right side
    133,241.14x = 16,108,503,895.37
  5. Step 5: Solve for x
    x = 16,108,503,895.37/133,241.14
  6. Step 6: Final answer
    x = 120,897.37

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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.