Home / 209,814.12-289,539.84-114,321.60

Finding the Fourth Proportional to 209,814.12, 289,539.84 and 114,321.60

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Solution

The fourth proportional to 209,814.12, 289,539.84 and 114,321.60 is: 157,761.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,814.12 : 289,539.84 = 114,321.60 : x
  2. Step 2: Convert to fraction form
    209,814.12/289,539.84 = 114,321.60/x
  3. Step 3: Cross multiply
    209,814.12x = 289,539.84 × 114,321.60
  4. Step 4: Simplify right side
    209,814.12x = 33,100,657,772.54
  5. Step 5: Solve for x
    x = 33,100,657,772.54/209,814.12
  6. Step 6: Final answer
    x = 157,761.82

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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.