Home / 133,380.43-184,058.09-72,939.31

Finding the Fourth Proportional to 133,380.43, 184,058.09 and 72,939.31

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Solution

The fourth proportional to 133,380.43, 184,058.09 and 72,939.31 is: 100,652.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,380.43 : 184,058.09 = 72,939.31 : x
  2. Step 2: Convert to fraction form
    133,380.43/184,058.09 = 72,939.31/x
  3. Step 3: Cross multiply
    133,380.43x = 184,058.09 × 72,939.31
  4. Step 4: Simplify right side
    133,380.43x = 13,425,069,719.82
  5. Step 5: Solve for x
    x = 13,425,069,719.82/133,380.43
  6. Step 6: Final answer
    x = 100,652.47

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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.