Home / 209,320.12-288,867.24-113,832.40

Finding the Fourth Proportional to 209,320.12, 288,867.24 and 113,832.40

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Solution

The fourth proportional to 209,320.12, 288,867.24 and 113,832.40 is: 157,091.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,320.12 : 288,867.24 = 113,832.40 : x
  2. Step 2: Convert to fraction form
    209,320.12/288,867.24 = 113,832.40/x
  3. Step 3: Cross multiply
    209,320.12x = 288,867.24 × 113,832.40
  4. Step 4: Simplify right side
    209,320.12x = 32,882,451,210.58
  5. Step 5: Solve for x
    x = 32,882,451,210.58/209,320.12
  6. Step 6: Final answer
    x = 157,091.69

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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.