Home / 209,887.32-289,636.02-114,391.96

Finding the Fourth Proportional to 209,887.32, 289,636.02 and 114,391.96

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Solution

The fourth proportional to 209,887.32, 289,636.02 and 114,391.96 is: 157,856.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,887.32 : 289,636.02 = 114,391.96 : x
  2. Step 2: Convert to fraction form
    209,887.32/289,636.02 = 114,391.96/x
  3. Step 3: Cross multiply
    209,887.32x = 289,636.02 × 114,391.96
  4. Step 4: Simplify right side
    209,887.32x = 33,132,032,014.40
  5. Step 5: Solve for x
    x = 33,132,032,014.40/209,887.32
  6. Step 6: Final answer
    x = 157,856.28

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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.