Home / 208,778.38-288,188.88-123,895.44

Finding the Fourth Proportional to 208,778.38, 288,188.88 and 123,895.44

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Solution

The fourth proportional to 208,778.38, 288,188.88 and 123,895.44 is: 171,020.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,778.38 : 288,188.88 = 123,895.44 : x
  2. Step 2: Convert to fraction form
    208,778.38/288,188.88 = 123,895.44/x
  3. Step 3: Cross multiply
    208,778.38x = 288,188.88 × 123,895.44
  4. Step 4: Simplify right side
    208,778.38x = 35,705,288,090.71
  5. Step 5: Solve for x
    x = 35,705,288,090.71/208,778.38
  6. Step 6: Final answer
    x = 171,020.05

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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.