Home / 137,971.22-190,401.98-77,538.33

Finding the Fourth Proportional to 137,971.22, 190,401.98 and 77,538.33

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Solution

The fourth proportional to 137,971.22, 190,401.98 and 77,538.33 is: 107,003.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,971.22 : 190,401.98 = 77,538.33 : x
  2. Step 2: Convert to fraction form
    137,971.22/190,401.98 = 77,538.33/x
  3. Step 3: Cross multiply
    137,971.22x = 190,401.98 × 77,538.33
  4. Step 4: Simplify right side
    137,971.22x = 14,763,451,170.20
  5. Step 5: Solve for x
    x = 14,763,451,170.20/137,971.22
  6. Step 6: Final answer
    x = 107,003.85

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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.