Home / 209,634.48-289,301.76-114,145.20

Finding the Fourth Proportional to 209,634.48, 289,301.76 and 114,145.20

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Solution

The fourth proportional to 209,634.48, 289,301.76 and 114,145.20 is: 157,523.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,634.48 : 289,301.76 = 114,145.20 : x
  2. Step 2: Convert to fraction form
    209,634.48/289,301.76 = 114,145.20/x
  3. Step 3: Cross multiply
    209,634.48x = 289,301.76 × 114,145.20
  4. Step 4: Simplify right side
    209,634.48x = 33,022,407,255.55
  5. Step 5: Solve for x
    x = 33,022,407,255.55/209,634.48
  6. Step 6: Final answer
    x = 157,523.74

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1.5x scale

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.