Home / 123,968.21-171,074.85-67,379.18

Finding the Fourth Proportional to 123,968.21, 171,074.85 and 67,379.18

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Solution

The fourth proportional to 123,968.21, 171,074.85 and 67,379.18 is: 92,982.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,968.21 : 171,074.85 = 67,379.18 : x
  2. Step 2: Convert to fraction form
    123,968.21/171,074.85 = 67,379.18/x
  3. Step 3: Cross multiply
    123,968.21x = 171,074.85 × 67,379.18
  4. Step 4: Simplify right side
    123,968.21x = 11,526,883,111.62
  5. Step 5: Solve for x
    x = 11,526,883,111.62/123,968.21
  6. Step 6: Final answer
    x = 92,982.57

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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.