Home / 209,189.64-288,682.10-113,696.11

Finding the Fourth Proportional to 209,189.64, 288,682.10 and 113,696.11

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Solution

The fourth proportional to 209,189.64, 288,682.10 and 113,696.11 is: 156,900.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,189.64 : 288,682.10 = 113,696.11 : x
  2. Step 2: Convert to fraction form
    209,189.64/288,682.10 = 113,696.11/x
  3. Step 3: Cross multiply
    209,189.64x = 288,682.10 × 113,696.11
  4. Step 4: Simplify right side
    209,189.64x = 32,822,030,711.30
  5. Step 5: Solve for x
    x = 32,822,030,711.30/209,189.64
  6. Step 6: Final answer
    x = 156,900.84

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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.