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Finding the Fourth Proportional to 133,777.75, 184,642.10 and 80,074.75

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Solution

The fourth proportional to 133,777.75, 184,642.10 and 80,074.75 is: 110,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,777.75 : 184,642.10 = 80,074.75 : x
  2. Step 2: Convert to fraction form
    133,777.75/184,642.10 = 80,074.75/x
  3. Step 3: Cross multiply
    133,777.75x = 184,642.10 × 80,074.75
  4. Step 4: Simplify right side
    133,777.75x = 14,785,169,996.98
  5. Step 5: Solve for x
    x = 14,785,169,996.98/133,777.75
  6. Step 6: Final answer
    x = 110,520.40

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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.