Home / 133,051.40-199,477.26-80,450.12

Finding the Fourth Proportional to 133,051.40, 199,477.26 and 80,450.12

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Solution

The fourth proportional to 133,051.40, 199,477.26 and 80,450.12 is: 120,614.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,051.40 : 199,477.26 = 80,450.12 : x
  2. Step 2: Convert to fraction form
    133,051.40/199,477.26 = 80,450.12/x
  3. Step 3: Cross multiply
    133,051.40x = 199,477.26 × 80,450.12
  4. Step 4: Simplify right side
    133,051.40x = 16,047,969,504.27
  5. Step 5: Solve for x
    x = 16,047,969,504.27/133,051.40
  6. Step 6: Final answer
    x = 120,614.81

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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.