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Finding the Fourth Proportional to 133,866.84, 184,735.15 and 72,612.88

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Solution

The fourth proportional to 133,866.84, 184,735.15 and 72,612.88 is: 100,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,866.84 : 184,735.15 = 72,612.88 : x
  2. Step 2: Convert to fraction form
    133,866.84/184,735.15 = 72,612.88/x
  3. Step 3: Cross multiply
    133,866.84x = 184,735.15 × 72,612.88
  4. Step 4: Simplify right side
    133,866.84x = 13,414,150,816.31
  5. Step 5: Solve for x
    x = 13,414,150,816.31/133,866.84
  6. Step 6: Final answer
    x = 100,205.18

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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.