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Finding the Fourth Proportional to 133,835.67, 184,708.65 and 80,120.67

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Solution

The fourth proportional to 133,835.67, 184,708.65 and 80,120.67 is: 110,575.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,835.67 : 184,708.65 = 80,120.67 : x
  2. Step 2: Convert to fraction form
    133,835.67/184,708.65 = 80,120.67/x
  3. Step 3: Cross multiply
    133,835.67x = 184,708.65 × 80,120.67
  4. Step 4: Simplify right side
    133,835.67x = 14,798,980,792.80
  5. Step 5: Solve for x
    x = 14,798,980,792.80/133,835.67
  6. Step 6: Final answer
    x = 110,575.76

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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.