Home / 136,629.63-188,544.27-75,378.27

Finding the Fourth Proportional to 136,629.63, 188,544.27 and 75,378.27

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Solution

The fourth proportional to 136,629.63, 188,544.27 and 75,378.27 is: 104,019.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,629.63 : 188,544.27 = 75,378.27 : x
  2. Step 2: Convert to fraction form
    136,629.63/188,544.27 = 75,378.27/x
  3. Step 3: Cross multiply
    136,629.63x = 188,544.27 × 75,378.27
  4. Step 4: Simplify right side
    136,629.63x = 14,212,140,891.01
  5. Step 5: Solve for x
    x = 14,212,140,891.01/136,629.63
  6. Step 6: Final answer
    x = 104,019.46

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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.