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Finding the Fourth Proportional to 133,703.68, 200,503.68 and 71,340.16

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Solution

The fourth proportional to 133,703.68, 200,503.68 and 71,340.16 is: 106,982.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,703.68 : 200,503.68 = 71,340.16 : x
  2. Step 2: Convert to fraction form
    133,703.68/200,503.68 = 71,340.16/x
  3. Step 3: Cross multiply
    133,703.68x = 200,503.68 × 71,340.16
  4. Step 4: Simplify right side
    133,703.68x = 14,303,964,611.79
  5. Step 5: Solve for x
    x = 14,303,964,611.79/133,703.68
  6. Step 6: Final answer
    x = 106,982.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.