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Finding the Fourth Proportional to 146,140.88, 201,674.41 and 79,072.88

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Solution

The fourth proportional to 146,140.88, 201,674.41 and 79,072.88 is: 109,120.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,140.88 : 201,674.41 = 79,072.88 : x
  2. Step 2: Convert to fraction form
    146,140.88/201,674.41 = 79,072.88/x
  3. Step 3: Cross multiply
    146,140.88x = 201,674.41 × 79,072.88
  4. Step 4: Simplify right side
    146,140.88x = 15,946,975,214.95
  5. Step 5: Solve for x
    x = 15,946,975,214.95/146,140.88
  6. Step 6: Final answer
    x = 109,120.57

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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.