Home / 426,603.03-639,906.29-106,754.02

Finding the Fourth Proportional to 426,603.03, 639,906.29 and 106,754.02

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Solution

The fourth proportional to 426,603.03, 639,906.29 and 106,754.02 is: 160,131.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,603.03 : 639,906.29 = 106,754.02 : x
  2. Step 2: Convert to fraction form
    426,603.03/639,906.29 = 106,754.02/x
  3. Step 3: Cross multiply
    426,603.03x = 639,906.29 × 106,754.02
  4. Step 4: Simplify right side
    426,603.03x = 68,312,570,747.44
  5. Step 5: Solve for x
    x = 68,312,570,747.44/426,603.03
  6. Step 6: Final answer
    x = 160,131.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.