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Finding the Fourth Proportional to 133,168.64, 183,764.58 and 72,727.04

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Solution

The fourth proportional to 133,168.64, 183,764.58 and 72,727.04 is: 100,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,168.64 : 183,764.58 = 72,727.04 : x
  2. Step 2: Convert to fraction form
    133,168.64/183,764.58 = 72,727.04/x
  3. Step 3: Cross multiply
    133,168.64x = 183,764.58 × 72,727.04
  4. Step 4: Simplify right side
    133,168.64x = 13,364,653,960.24
  5. Step 5: Solve for x
    x = 13,364,653,960.24/133,168.64
  6. Step 6: Final answer
    x = 100,358.87

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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.