Home / 125,612.20-188,126.70-122,696.20

Finding the Fourth Proportional to 125,612.20, 188,126.70 and 122,696.20

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Solution

The fourth proportional to 125,612.20, 188,126.70 and 122,696.20 is: 183,759.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,612.20 : 188,126.70 = 122,696.20 : x
  2. Step 2: Convert to fraction form
    125,612.20/188,126.70 = 122,696.20/x
  3. Step 3: Cross multiply
    125,612.20x = 188,126.70 × 122,696.20
  4. Step 4: Simplify right side
    125,612.20x = 23,082,431,208.54
  5. Step 5: Solve for x
    x = 23,082,431,208.54/125,612.20
  6. Step 6: Final answer
    x = 183,759.47

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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.