Home / 209,100.03-288,582.64-124,217.09

Finding the Fourth Proportional to 209,100.03, 288,582.64 and 124,217.09

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Solution

The fourth proportional to 209,100.03, 288,582.64 and 124,217.09 is: 171,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,100.03 : 288,582.64 = 124,217.09 : x
  2. Step 2: Convert to fraction form
    209,100.03/288,582.64 = 124,217.09/x
  3. Step 3: Cross multiply
    209,100.03x = 288,582.64 × 124,217.09
  4. Step 4: Simplify right side
    209,100.03x = 35,846,895,765.32
  5. Step 5: Solve for x
    x = 35,846,895,765.32/209,100.03
  6. Step 6: Final answer
    x = 171,434.20

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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.