Home / 209,761.97-289,470.02-114,268.64

Finding the Fourth Proportional to 209,761.97, 289,470.02 and 114,268.64

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Solution

The fourth proportional to 209,761.97, 289,470.02 and 114,268.64 is: 157,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,761.97 : 289,470.02 = 114,268.64 : x
  2. Step 2: Convert to fraction form
    209,761.97/289,470.02 = 114,268.64/x
  3. Step 3: Cross multiply
    209,761.97x = 289,470.02 × 114,268.64
  4. Step 4: Simplify right side
    209,761.97x = 33,077,343,487.48
  5. Step 5: Solve for x
    x = 33,077,343,487.48/209,761.97
  6. Step 6: Final answer
    x = 157,689.90

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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.