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Finding the Fourth Proportional to 133,688.75, 184,490.48 and 74,072.75

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Solution

The fourth proportional to 133,688.75, 184,490.48 and 74,072.75 is: 102,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,688.75 : 184,490.48 = 74,072.75 : x
  2. Step 2: Convert to fraction form
    133,688.75/184,490.48 = 74,072.75/x
  3. Step 3: Cross multiply
    133,688.75x = 184,490.48 × 74,072.75
  4. Step 4: Simplify right side
    133,688.75x = 13,665,717,202.42
  5. Step 5: Solve for x
    x = 13,665,717,202.42/133,688.75
  6. Step 6: Final answer
    x = 102,220.40

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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.