Home / 143,190.75-197,603.24-79,534.47

Finding the Fourth Proportional to 143,190.75, 197,603.24 and 79,534.47

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Solution

The fourth proportional to 143,190.75, 197,603.24 and 79,534.47 is: 109,757.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,190.75 : 197,603.24 = 79,534.47 : x
  2. Step 2: Convert to fraction form
    143,190.75/197,603.24 = 79,534.47/x
  3. Step 3: Cross multiply
    143,190.75x = 197,603.24 × 79,534.47
  4. Step 4: Simplify right side
    143,190.75x = 15,716,268,963.68
  5. Step 5: Solve for x
    x = 15,716,268,963.68/143,190.75
  6. Step 6: Final answer
    x = 109,757.57

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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.