Home / 133,845.89-184,722.75-80,130.87

Finding the Fourth Proportional to 133,845.89, 184,722.75 and 80,130.87

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Solution

The fourth proportional to 133,845.89, 184,722.75 and 80,130.87 is: 110,589.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,845.89 : 184,722.75 = 80,130.87 : x
  2. Step 2: Convert to fraction form
    133,845.89/184,722.75 = 80,130.87/x
  3. Step 3: Cross multiply
    133,845.89x = 184,722.75 × 80,130.87
  4. Step 4: Simplify right side
    133,845.89x = 14,801,994,666.29
  5. Step 5: Solve for x
    x = 14,801,994,666.29/133,845.89
  6. Step 6: Final answer
    x = 110,589.84

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1.5x scale

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.