Home / 125,161.28-187,766.43-55,040.36

Finding the Fourth Proportional to 125,161.28, 187,766.43 and 55,040.36

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Solution

The fourth proportional to 125,161.28, 187,766.43 and 55,040.36 is: 82,571.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,161.28 : 187,766.43 = 55,040.36 : x
  2. Step 2: Convert to fraction form
    125,161.28/187,766.43 = 55,040.36/x
  3. Step 3: Cross multiply
    125,161.28x = 187,766.43 × 55,040.36
  4. Step 4: Simplify right side
    125,161.28x = 10,334,731,903.11
  5. Step 5: Solve for x
    x = 10,334,731,903.11/125,161.28
  6. Step 6: Final answer
    x = 82,571.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.