Home / 209,176.90-288,662.53-113,684.28

Finding the Fourth Proportional to 209,176.90, 288,662.53 and 113,684.28

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Solution

The fourth proportional to 209,176.90, 288,662.53 and 113,684.28 is: 156,883.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,176.90 : 288,662.53 = 113,684.28 : x
  2. Step 2: Convert to fraction form
    209,176.90/288,662.53 = 113,684.28/x
  3. Step 3: Cross multiply
    209,176.90x = 288,662.53 × 113,684.28
  4. Step 4: Simplify right side
    209,176.90x = 32,816,391,886.03
  5. Step 5: Solve for x
    x = 32,816,391,886.03/209,176.90
  6. Step 6: Final answer
    x = 156,883.44

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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.