Home / 133,072.80-199,609.20-54,243.60

Finding the Fourth Proportional to 133,072.80, 199,609.20 and 54,243.60

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Solution

The fourth proportional to 133,072.80, 199,609.20 and 54,243.60 is: 81,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,072.80 : 199,609.20 = 54,243.60 : x
  2. Step 2: Convert to fraction form
    133,072.80/199,609.20 = 54,243.60/x
  3. Step 3: Cross multiply
    133,072.80x = 199,609.20 × 54,243.60
  4. Step 4: Simplify right side
    133,072.80x = 10,827,521,601.12
  5. Step 5: Solve for x
    x = 10,827,521,601.12/133,072.80
  6. Step 6: Final answer
    x = 81,365.40

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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.