Home / 188,968.48-261,010.56-137,203

Finding the Fourth Proportional to 188,968.48, 261,010.56 and 137,203

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Solution

The fourth proportional to 188,968.48, 261,010.56 and 137,203 is: 189,510.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,968.48 : 261,010.56 = 137,203 : x
  2. Step 2: Convert to fraction form
    188,968.48/261,010.56 = 137,203/x
  3. Step 3: Cross multiply
    188,968.48x = 261,010.56 × 137,203
  4. Step 4: Simplify right side
    188,968.48x = 35,811,431,863.68
  5. Step 5: Solve for x
    x = 35,811,431,863.68/188,968.48
  6. Step 6: Final answer
    x = 189,510.08

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1.5x scale

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.