Home / 209,403.28-288,973.56-113,910.64

Finding the Fourth Proportional to 209,403.28, 288,973.56 and 113,910.64

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Solution

The fourth proportional to 209,403.28, 288,973.56 and 113,910.64 is: 157,195.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,403.28 : 288,973.56 = 113,910.64 : x
  2. Step 2: Convert to fraction form
    209,403.28/288,973.56 = 113,910.64/x
  3. Step 3: Cross multiply
    209,403.28x = 288,973.56 × 113,910.64
  4. Step 4: Simplify right side
    209,403.28x = 32,917,163,162.68
  5. Step 5: Solve for x
    x = 32,917,163,162.68/209,403.28
  6. Step 6: Final answer
    x = 157,195.07

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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.