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Finding the Fourth Proportional to 133,268.77, 199,804.29 and 80,666.29

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Solution

The fourth proportional to 133,268.77, 199,804.29 and 80,666.29 is: 120,939.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,268.77 : 199,804.29 = 80,666.29 : x
  2. Step 2: Convert to fraction form
    133,268.77/199,804.29 = 80,666.29/x
  3. Step 3: Cross multiply
    133,268.77x = 199,804.29 × 80,666.29
  4. Step 4: Simplify right side
    133,268.77x = 16,117,470,800.38
  5. Step 5: Solve for x
    x = 16,117,470,800.38/133,268.77
  6. Step 6: Final answer
    x = 120,939.59

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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.