Home / 209,169.45-288,653.58-113,675.94

Finding the Fourth Proportional to 209,169.45, 288,653.58 and 113,675.94

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Solution

The fourth proportional to 209,169.45, 288,653.58 and 113,675.94 is: 156,872.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,169.45 : 288,653.58 = 113,675.94 : x
  2. Step 2: Convert to fraction form
    209,169.45/288,653.58 = 113,675.94/x
  3. Step 3: Cross multiply
    209,169.45x = 288,653.58 × 113,675.94
  4. Step 4: Simplify right side
    209,169.45x = 32,812,967,040.87
  5. Step 5: Solve for x
    x = 32,812,967,040.87/209,169.45
  6. Step 6: Final answer
    x = 156,872.66

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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.