Home / 123,968.26-171,068.96-67,379.14

Finding the Fourth Proportional to 123,968.26, 171,068.96 and 67,379.14

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Solution

The fourth proportional to 123,968.26, 171,068.96 and 67,379.14 is: 92,979.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,968.26 : 171,068.96 = 67,379.14 : x
  2. Step 2: Convert to fraction form
    123,968.26/171,068.96 = 67,379.14/x
  3. Step 3: Cross multiply
    123,968.26x = 171,068.96 × 67,379.14
  4. Step 4: Simplify right side
    123,968.26x = 11,526,479,405.49
  5. Step 5: Solve for x
    x = 11,526,479,405.49/123,968.26
  6. Step 6: Final answer
    x = 92,979.28

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1.5x scale

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.