Home / 138,037.39-190,413.81-82,832.44

Finding the Fourth Proportional to 138,037.39, 190,413.81 and 82,832.44

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Solution

The fourth proportional to 138,037.39, 190,413.81 and 82,832.44 is: 114,262.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,037.39 : 190,413.81 = 82,832.44 : x
  2. Step 2: Convert to fraction form
    138,037.39/190,413.81 = 82,832.44/x
  3. Step 3: Cross multiply
    138,037.39x = 190,413.81 × 82,832.44
  4. Step 4: Simplify right side
    138,037.39x = 15,772,440,605.95
  5. Step 5: Solve for x
    x = 15,772,440,605.95/138,037.39
  6. Step 6: Final answer
    x = 114,262.09

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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.