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Finding the Fourth Proportional to 133,793.78, 184,484.07 and 85,330.88

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Solution

The fourth proportional to 133,793.78, 184,484.07 and 85,330.88 is: 117,660.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,793.78 : 184,484.07 = 85,330.88 : x
  2. Step 2: Convert to fraction form
    133,793.78/184,484.07 = 85,330.88/x
  3. Step 3: Cross multiply
    133,793.78x = 184,484.07 × 85,330.88
  4. Step 4: Simplify right side
    133,793.78x = 15,742,188,039.08
  5. Step 5: Solve for x
    x = 15,742,188,039.08/133,793.78
  6. Step 6: Final answer
    x = 117,660.09

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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.