Home / 202,078.98-278,884.89-111,443.22

Finding the Fourth Proportional to 202,078.98, 278,884.89 and 111,443.22

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Solution

The fourth proportional to 202,078.98, 278,884.89 and 111,443.22 is: 153,800.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,078.98 : 278,884.89 = 111,443.22 : x
  2. Step 2: Convert to fraction form
    202,078.98/278,884.89 = 111,443.22/x
  3. Step 3: Cross multiply
    202,078.98x = 278,884.89 × 111,443.22
  4. Step 4: Simplify right side
    202,078.98x = 31,079,830,150.95
  5. Step 5: Solve for x
    x = 31,079,830,150.95/202,078.98
  6. Step 6: Final answer
    x = 153,800.41

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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.