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Finding the Fourth Proportional to 123,376.80, 170,270.04 and 69,674.88

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Solution

The fourth proportional to 123,376.80, 170,270.04 and 69,674.88 is: 96,157.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,376.80 : 170,270.04 = 69,674.88 : x
  2. Step 2: Convert to fraction form
    123,376.80/170,270.04 = 69,674.88/x
  3. Step 3: Cross multiply
    123,376.80x = 170,270.04 × 69,674.88
  4. Step 4: Simplify right side
    123,376.80x = 11,863,544,604.60
  5. Step 5: Solve for x
    x = 11,863,544,604.60/123,376.80
  6. Step 6: Final answer
    x = 96,157.01

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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.