Home / 209,784.64-289,501.20-114,291.04

Finding the Fourth Proportional to 209,784.64, 289,501.20 and 114,291.04

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Solution

The fourth proportional to 209,784.64, 289,501.20 and 114,291.04 is: 157,720.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,784.64 : 289,501.20 = 114,291.04 : x
  2. Step 2: Convert to fraction form
    209,784.64/289,501.20 = 114,291.04/x
  3. Step 3: Cross multiply
    209,784.64x = 289,501.20 × 114,291.04
  4. Step 4: Simplify right side
    209,784.64x = 33,087,393,229.25
  5. Step 5: Solve for x
    x = 33,087,393,229.25/209,784.64
  6. Step 6: Final answer
    x = 157,720.76

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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.