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Finding the Fourth Proportional to 133,385.84, 184,069.88 and 72,956.32

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Solution

The fourth proportional to 133,385.84, 184,069.88 and 72,956.32 is: 100,678.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,385.84 : 184,069.88 = 72,956.32 : x
  2. Step 2: Convert to fraction form
    133,385.84/184,069.88 = 72,956.32/x
  3. Step 3: Cross multiply
    133,385.84x = 184,069.88 × 72,956.32
  4. Step 4: Simplify right side
    133,385.84x = 13,429,061,067.64
  5. Step 5: Solve for x
    x = 13,429,061,067.64/133,385.84
  6. Step 6: Final answer
    x = 100,678.31

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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.