Home / 133,579.53-184,356.81-76,991.31

Finding the Fourth Proportional to 133,579.53, 184,356.81 and 76,991.31

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Solution

The fourth proportional to 133,579.53, 184,356.81 and 76,991.31 is: 106,257.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,579.53 : 184,356.81 = 76,991.31 : x
  2. Step 2: Convert to fraction form
    133,579.53/184,356.81 = 76,991.31/x
  3. Step 3: Cross multiply
    133,579.53x = 184,356.81 × 76,991.31
  4. Step 4: Simplify right side
    133,579.53x = 14,193,872,309.32
  5. Step 5: Solve for x
    x = 14,193,872,309.32/133,579.53
  6. Step 6: Final answer
    x = 106,257.84

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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.