Home / 209,175.45-288,664.36-113,682.15

Finding the Fourth Proportional to 209,175.45, 288,664.36 and 113,682.15

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Solution

The fourth proportional to 209,175.45, 288,664.36 and 113,682.15 is: 156,882.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,175.45 : 288,664.36 = 113,682.15 : x
  2. Step 2: Convert to fraction form
    209,175.45/288,664.36 = 113,682.15/x
  3. Step 3: Cross multiply
    209,175.45x = 288,664.36 × 113,682.15
  4. Step 4: Simplify right side
    209,175.45x = 32,815,984,788.97
  5. Step 5: Solve for x
    x = 32,815,984,788.97/209,175.45
  6. Step 6: Final answer
    x = 156,882.58

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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.