Home / 192,905.72-266,339.89-120,418.98

Finding the Fourth Proportional to 192,905.72, 266,339.89 and 120,418.98

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Solution

The fourth proportional to 192,905.72, 266,339.89 and 120,418.98 is: 166,259.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,905.72 : 266,339.89 = 120,418.98 : x
  2. Step 2: Convert to fraction form
    192,905.72/266,339.89 = 120,418.98/x
  3. Step 3: Cross multiply
    192,905.72x = 266,339.89 × 120,418.98
  4. Step 4: Simplify right side
    192,905.72x = 32,072,377,887.11
  5. Step 5: Solve for x
    x = 32,072,377,887.11/192,905.72
  6. Step 6: Final answer
    x = 166,259.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.