Home / 209,811.60-289,543.28-114,318.24

Finding the Fourth Proportional to 209,811.60, 289,543.28 and 114,318.24

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Solution

The fourth proportional to 209,811.60, 289,543.28 and 114,318.24 is: 157,760.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,811.60 : 289,543.28 = 114,318.24 : x
  2. Step 2: Convert to fraction form
    209,811.60/289,543.28 = 114,318.24/x
  3. Step 3: Cross multiply
    209,811.60x = 289,543.28 × 114,318.24
  4. Step 4: Simplify right side
    209,811.60x = 33,100,078,173.43
  5. Step 5: Solve for x
    x = 33,100,078,173.43/209,811.60
  6. Step 6: Final answer
    x = 157,760.95

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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.