Home / 209,313.12-288,857.58-113,825.40

Finding the Fourth Proportional to 209,313.12, 288,857.58 and 113,825.40

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Solution

The fourth proportional to 209,313.12, 288,857.58 and 113,825.40 is: 157,082.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,313.12 : 288,857.58 = 113,825.40 : x
  2. Step 2: Convert to fraction form
    209,313.12/288,857.58 = 113,825.40/x
  3. Step 3: Cross multiply
    209,313.12x = 288,857.58 × 113,825.40
  4. Step 4: Simplify right side
    209,313.12x = 32,879,329,586.53
  5. Step 5: Solve for x
    x = 32,879,329,586.53/209,313.12
  6. Step 6: Final answer
    x = 157,082.03

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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.