Home / 209,189.70-288,684.03-113,696.40

Finding the Fourth Proportional to 209,189.70, 288,684.03 and 113,696.40

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Solution

The fourth proportional to 209,189.70, 288,684.03 and 113,696.40 is: 156,902.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,189.70 : 288,684.03 = 113,696.40 : x
  2. Step 2: Convert to fraction form
    209,189.70/288,684.03 = 113,696.40/x
  3. Step 3: Cross multiply
    209,189.70x = 288,684.03 × 113,696.40
  4. Step 4: Simplify right side
    209,189.70x = 32,822,334,948.49
  5. Step 5: Solve for x
    x = 32,822,334,948.49/209,189.70
  6. Step 6: Final answer
    x = 156,902.25

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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.