Home / 148,112.35-221,651.84-121,146.64

Finding the Fourth Proportional to 148,112.35, 221,651.84 and 121,146.64

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Solution

The fourth proportional to 148,112.35, 221,651.84 and 121,146.64 is: 181,297.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,112.35 : 221,651.84 = 121,146.64 : x
  2. Step 2: Convert to fraction form
    148,112.35/221,651.84 = 121,146.64/x
  3. Step 3: Cross multiply
    148,112.35x = 221,651.84 × 121,146.64
  4. Step 4: Simplify right side
    148,112.35x = 26,852,375,414.55
  5. Step 5: Solve for x
    x = 26,852,375,414.55/148,112.35
  6. Step 6: Final answer
    x = 181,297.35

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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.