Home / 105,974.83-158,986.87-31,091.95

Finding the Fourth Proportional to 105,974.83, 158,986.87 and 31,091.95

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Solution

The fourth proportional to 105,974.83, 158,986.87 and 31,091.95 is: 46,645.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,974.83 : 158,986.87 = 31,091.95 : x
  2. Step 2: Convert to fraction form
    105,974.83/158,986.87 = 31,091.95/x
  3. Step 3: Cross multiply
    105,974.83x = 158,986.87 × 31,091.95
  4. Step 4: Simplify right side
    105,974.83x = 4,943,211,657.24
  5. Step 5: Solve for x
    x = 4,943,211,657.24/105,974.83
  6. Step 6: Final answer
    x = 46,645.15

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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.