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Finding the Fourth Proportional to 133,604.67, 184,285.74 and 85,918.35

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Solution

The fourth proportional to 133,604.67, 184,285.74 and 85,918.35 is: 118,510.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,604.67 : 184,285.74 = 85,918.35 : x
  2. Step 2: Convert to fraction form
    133,604.67/184,285.74 = 85,918.35/x
  3. Step 3: Cross multiply
    133,604.67x = 184,285.74 × 85,918.35
  4. Step 4: Simplify right side
    133,604.67x = 15,833,526,709.33
  5. Step 5: Solve for x
    x = 15,833,526,709.33/133,604.67
  6. Step 6: Final answer
    x = 118,510.28

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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.