Home / 209,815.57-289,537.36-114,322.98

Finding the Fourth Proportional to 209,815.57, 289,537.36 and 114,322.98

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Solution

The fourth proportional to 209,815.57, 289,537.36 and 114,322.98 is: 157,761.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,815.57 : 289,537.36 = 114,322.98 : x
  2. Step 2: Convert to fraction form
    209,815.57/289,537.36 = 114,322.98/x
  3. Step 3: Cross multiply
    209,815.57x = 289,537.36 × 114,322.98
  4. Step 4: Simplify right side
    209,815.57x = 33,100,773,816.53
  5. Step 5: Solve for x
    x = 33,100,773,816.53/209,815.57
  6. Step 6: Final answer
    x = 157,761.28

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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.