Home / 199,940.28-275,925.96-115,057.68

Finding the Fourth Proportional to 199,940.28, 275,925.96 and 115,057.68

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Solution

The fourth proportional to 199,940.28, 275,925.96 and 115,057.68 is: 158,784.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,940.28 : 275,925.96 = 115,057.68 : x
  2. Step 2: Convert to fraction form
    199,940.28/275,925.96 = 115,057.68/x
  3. Step 3: Cross multiply
    199,940.28x = 275,925.96 × 115,057.68
  4. Step 4: Simplify right side
    199,940.28x = 31,747,400,809.37
  5. Step 5: Solve for x
    x = 31,747,400,809.37/199,940.28
  6. Step 6: Final answer
    x = 158,784.42

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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.