Home / 123,344.21-170,214.72-66,755.63

Finding the Fourth Proportional to 123,344.21, 170,214.72 and 66,755.63

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Solution

The fourth proportional to 123,344.21, 170,214.72 and 66,755.63 is: 92,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,344.21 : 170,214.72 = 66,755.63 : x
  2. Step 2: Convert to fraction form
    123,344.21/170,214.72 = 66,755.63/x
  3. Step 3: Cross multiply
    123,344.21x = 170,214.72 × 66,755.63
  4. Step 4: Simplify right side
    123,344.21x = 11,362,790,868.87
  5. Step 5: Solve for x
    x = 11,362,790,868.87/123,344.21
  6. Step 6: Final answer
    x = 92,122.61

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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.