Home / 94,960.85-142,283.13-66,821.78

Finding the Fourth Proportional to 94,960.85, 142,283.13 and 66,821.78

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Solution

The fourth proportional to 94,960.85, 142,283.13 and 66,821.78 is: 100,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,960.85 : 142,283.13 = 66,821.78 : x
  2. Step 2: Convert to fraction form
    94,960.85/142,283.13 = 66,821.78/x
  3. Step 3: Cross multiply
    94,960.85x = 142,283.13 × 66,821.78
  4. Step 4: Simplify right side
    94,960.85x = 9,507,611,299.16
  5. Step 5: Solve for x
    x = 9,507,611,299.16/94,960.85
  6. Step 6: Final answer
    x = 100,121.38

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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.