Home / 209,110.54-288,573-113,617.36

Finding the Fourth Proportional to 209,110.54, 288,573 and 113,617.36

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Solution

The fourth proportional to 209,110.54, 288,573 and 113,617.36 is: 156,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,110.54 : 288,573 = 113,617.36 : x
  2. Step 2: Convert to fraction form
    209,110.54/288,573 = 113,617.36/x
  3. Step 3: Cross multiply
    209,110.54x = 288,573 × 113,617.36
  4. Step 4: Simplify right side
    209,110.54x = 32,786,902,427.28
  5. Step 5: Solve for x
    x = 32,786,902,427.28/209,110.54
  6. Step 6: Final answer
    x = 156,792.20

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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.