Home / 148,361.40-204,725.28-87,922.31

Finding the Fourth Proportional to 148,361.40, 204,725.28 and 87,922.31

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Solution

The fourth proportional to 148,361.40, 204,725.28 and 87,922.31 is: 121,324.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,361.40 : 204,725.28 = 87,922.31 : x
  2. Step 2: Convert to fraction form
    148,361.40/204,725.28 = 87,922.31/x
  3. Step 3: Cross multiply
    148,361.40x = 204,725.28 × 87,922.31
  4. Step 4: Simplify right side
    148,361.40x = 17,999,919,021.18
  5. Step 5: Solve for x
    x = 17,999,919,021.18/148,361.40
  6. Step 6: Final answer
    x = 121,324.81

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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.