Home / 209,350.71-288,895.68-113,857.38

Finding the Fourth Proportional to 209,350.71, 288,895.68 and 113,857.38

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Solution

The fourth proportional to 209,350.71, 288,895.68 and 113,857.38 is: 157,118.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,350.71 : 288,895.68 = 113,857.38 : x
  2. Step 2: Convert to fraction form
    209,350.71/288,895.68 = 113,857.38/x
  3. Step 3: Cross multiply
    209,350.71x = 288,895.68 × 113,857.38
  4. Step 4: Simplify right side
    209,350.71x = 32,892,905,218.12
  5. Step 5: Solve for x
    x = 32,892,905,218.12/209,350.71
  6. Step 6: Final answer
    x = 157,118.67

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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.