Home / 115,144.16-158,899.26-66,755.49

Finding the Fourth Proportional to 115,144.16, 158,899.26 and 66,755.49

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Solution

The fourth proportional to 115,144.16, 158,899.26 and 66,755.49 is: 92,122.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,144.16 : 158,899.26 = 66,755.49 : x
  2. Step 2: Convert to fraction form
    115,144.16/158,899.26 = 66,755.49/x
  3. Step 3: Cross multiply
    115,144.16x = 158,899.26 × 66,755.49
  4. Step 4: Simplify right side
    115,144.16x = 10,607,397,961.94
  5. Step 5: Solve for x
    x = 10,607,397,961.94/115,144.16
  6. Step 6: Final answer
    x = 92,122.77

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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.