Home / 134,860.74-186,105.56-74,431.29

Finding the Fourth Proportional to 134,860.74, 186,105.56 and 74,431.29

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Solution

The fourth proportional to 134,860.74, 186,105.56 and 74,431.29 is: 102,713.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,860.74 : 186,105.56 = 74,431.29 : x
  2. Step 2: Convert to fraction form
    134,860.74/186,105.56 = 74,431.29/x
  3. Step 3: Cross multiply
    134,860.74x = 186,105.56 × 74,431.29
  4. Step 4: Simplify right side
    134,860.74x = 13,852,076,906.97
  5. Step 5: Solve for x
    x = 13,852,076,906.97/134,860.74
  6. Step 6: Final answer
    x = 102,713.93

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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.