Home / 103,936.94-143,447.85-75,351.23

Finding the Fourth Proportional to 103,936.94, 143,447.85 and 75,351.23

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Solution

The fourth proportional to 103,936.94, 143,447.85 and 75,351.23 is: 103,995.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,936.94 : 143,447.85 = 75,351.23 : x
  2. Step 2: Convert to fraction form
    103,936.94/143,447.85 = 75,351.23/x
  3. Step 3: Cross multiply
    103,936.94x = 143,447.85 × 75,351.23
  4. Step 4: Simplify right side
    103,936.94x = 10,808,971,938.36
  5. Step 5: Solve for x
    x = 10,808,971,938.36/103,936.94
  6. Step 6: Final answer
    x = 103,995.48

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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.