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Finding the Fourth Proportional to 133,048.68, 183,602.60 and 79,306

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Solution

The fourth proportional to 133,048.68, 183,602.60 and 79,306 is: 109,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,048.68 : 183,602.60 = 79,306 : x
  2. Step 2: Convert to fraction form
    133,048.68/183,602.60 = 79,306/x
  3. Step 3: Cross multiply
    133,048.68x = 183,602.60 × 79,306
  4. Step 4: Simplify right side
    133,048.68x = 14,560,787,795.60
  5. Step 5: Solve for x
    x = 14,560,787,795.60/133,048.68
  6. Step 6: Final answer
    x = 109,439.55

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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.