Home / 125,708.38-188,525.65-36,940.78

Finding the Fourth Proportional to 125,708.38, 188,525.65 and 36,940.78

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Solution

The fourth proportional to 125,708.38, 188,525.65 and 36,940.78 is: 55,400.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,708.38 : 188,525.65 = 36,940.78 : x
  2. Step 2: Convert to fraction form
    125,708.38/188,525.65 = 36,940.78/x
  3. Step 3: Cross multiply
    125,708.38x = 188,525.65 × 36,940.78
  4. Step 4: Simplify right side
    125,708.38x = 6,964,284,561.01
  5. Step 5: Solve for x
    x = 6,964,284,561.01/125,708.38
  6. Step 6: Final answer
    x = 55,400.32

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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.