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Finding the Fourth Proportional to 133,342.35, 184,009.78 and 72,912.35

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Solution

The fourth proportional to 133,342.35, 184,009.78 and 72,912.35 is: 100,617.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,342.35 : 184,009.78 = 72,912.35 : x
  2. Step 2: Convert to fraction form
    133,342.35/184,009.78 = 72,912.35/x
  3. Step 3: Cross multiply
    133,342.35x = 184,009.78 × 72,912.35
  4. Step 4: Simplify right side
    133,342.35x = 13,416,585,623.82
  5. Step 5: Solve for x
    x = 13,416,585,623.82/133,342.35
  6. Step 6: Final answer
    x = 100,617.59

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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.