Home / 133,078.10-199,640.19-54,235.22

Finding the Fourth Proportional to 133,078.10, 199,640.19 and 54,235.22

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Solution

The fourth proportional to 133,078.10, 199,640.19 and 54,235.22 is: 81,362.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,078.10 : 199,640.19 = 54,235.22 : x
  2. Step 2: Convert to fraction form
    133,078.10/199,640.19 = 54,235.22/x
  3. Step 3: Cross multiply
    133,078.10x = 199,640.19 × 54,235.22
  4. Step 4: Simplify right side
    133,078.10x = 10,827,529,625.49
  5. Step 5: Solve for x
    x = 10,827,529,625.49/133,078.10
  6. Step 6: Final answer
    x = 81,362.22

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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.