Home / 199,916.73-275,858.46-128,393.64

Finding the Fourth Proportional to 199,916.73, 275,858.46 and 128,393.64

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Solution

The fourth proportional to 199,916.73, 275,858.46 and 128,393.64 is: 177,166.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,916.73 : 275,858.46 = 128,393.64 : x
  2. Step 2: Convert to fraction form
    199,916.73/275,858.46 = 128,393.64/x
  3. Step 3: Cross multiply
    199,916.73x = 275,858.46 × 128,393.64
  4. Step 4: Simplify right side
    199,916.73x = 35,418,471,804.19
  5. Step 5: Solve for x
    x = 35,418,471,804.19/199,916.73
  6. Step 6: Final answer
    x = 177,166.12

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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.