Home / 123,380.93-170,266.22-66,792.31

Finding the Fourth Proportional to 123,380.93, 170,266.22 and 66,792.31

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Solution

The fourth proportional to 123,380.93, 170,266.22 and 66,792.31 is: 92,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,380.93 : 170,266.22 = 66,792.31 : x
  2. Step 2: Convert to fraction form
    123,380.93/170,266.22 = 66,792.31/x
  3. Step 3: Cross multiply
    123,380.93x = 170,266.22 × 66,792.31
  4. Step 4: Simplify right side
    123,380.93x = 11,372,474,148.77
  5. Step 5: Solve for x
    x = 11,372,474,148.77/123,380.93
  6. Step 6: Final answer
    x = 92,173.68

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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.