Home / 133,072.10-199,664.85-69,940.70

Finding the Fourth Proportional to 133,072.10, 199,664.85 and 69,940.70

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Solution

The fourth proportional to 133,072.10, 199,664.85 and 69,940.70 is: 104,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,072.10 : 199,664.85 = 69,940.70 : x
  2. Step 2: Convert to fraction form
    133,072.10/199,664.85 = 69,940.70/x
  3. Step 3: Cross multiply
    133,072.10x = 199,664.85 × 69,940.70
  4. Step 4: Simplify right side
    133,072.10x = 13,964,699,374.40
  5. Step 5: Solve for x
    x = 13,964,699,374.40/133,072.10
  6. Step 6: Final answer
    x = 104,940.85

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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.