Home / 209,176.45-288,665.74-113,683.15

Finding the Fourth Proportional to 209,176.45, 288,665.74 and 113,683.15

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Solution

The fourth proportional to 209,176.45, 288,665.74 and 113,683.15 is: 156,883.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,176.45 : 288,665.74 = 113,683.15 : x
  2. Step 2: Convert to fraction form
    209,176.45/288,665.74 = 113,683.15/x
  3. Step 3: Cross multiply
    209,176.45x = 288,665.74 × 113,683.15
  4. Step 4: Simplify right side
    209,176.45x = 32,816,430,620.28
  5. Step 5: Solve for x
    x = 32,816,430,620.28/209,176.45
  6. Step 6: Final answer
    x = 156,883.96

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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.