Home / 143,186.93-197,619.50-103,033.61

Finding the Fourth Proportional to 143,186.93, 197,619.50 and 103,033.61

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Solution

The fourth proportional to 143,186.93, 197,619.50 and 103,033.61 is: 142,201.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,186.93 : 197,619.50 = 103,033.61 : x
  2. Step 2: Convert to fraction form
    143,186.93/197,619.50 = 103,033.61/x
  3. Step 3: Cross multiply
    143,186.93x = 197,619.50 × 103,033.61
  4. Step 4: Simplify right side
    143,186.93x = 20,361,450,491.40
  5. Step 5: Solve for x
    x = 20,361,450,491.40/143,186.93
  6. Step 6: Final answer
    x = 142,201.88

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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.