Home / 142,616.22-196,830.96-82,175.28

Finding the Fourth Proportional to 142,616.22, 196,830.96 and 82,175.28

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Solution

The fourth proportional to 142,616.22, 196,830.96 and 82,175.28 is: 113,413.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,616.22 : 196,830.96 = 82,175.28 : x
  2. Step 2: Convert to fraction form
    142,616.22/196,830.96 = 82,175.28/x
  3. Step 3: Cross multiply
    142,616.22x = 196,830.96 × 82,175.28
  4. Step 4: Simplify right side
    142,616.22x = 16,174,639,250.67
  5. Step 5: Solve for x
    x = 16,174,639,250.67/142,616.22
  6. Step 6: Final answer
    x = 113,413.74

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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.