Home / 136,289.08-188,078.94-75,858.43

Finding the Fourth Proportional to 136,289.08, 188,078.94 and 75,858.43

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Solution

The fourth proportional to 136,289.08, 188,078.94 and 75,858.43 is: 104,684.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,289.08 : 188,078.94 = 75,858.43 : x
  2. Step 2: Convert to fraction form
    136,289.08/188,078.94 = 75,858.43/x
  3. Step 3: Cross multiply
    136,289.08x = 188,078.94 × 75,858.43
  4. Step 4: Simplify right side
    136,289.08x = 14,267,373,385.85
  5. Step 5: Solve for x
    x = 14,267,373,385.85/136,289.08
  6. Step 6: Final answer
    x = 104,684.64

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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.