Home / 133,286.68-183,940.56-72,861.42

Finding the Fourth Proportional to 133,286.68, 183,940.56 and 72,861.42

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Solution

The fourth proportional to 133,286.68, 183,940.56 and 72,861.42 is: 100,551.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,286.68 : 183,940.56 = 72,861.42 : x
  2. Step 2: Convert to fraction form
    133,286.68/183,940.56 = 72,861.42/x
  3. Step 3: Cross multiply
    133,286.68x = 183,940.56 × 72,861.42
  4. Step 4: Simplify right side
    133,286.68x = 13,402,170,397.20
  5. Step 5: Solve for x
    x = 13,402,170,397.20/133,286.68
  6. Step 6: Final answer
    x = 100,551.46

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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.