Home / 103,828.24-143,345.21-68,080.60

Finding the Fourth Proportional to 103,828.24, 143,345.21 and 68,080.60

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Solution

The fourth proportional to 103,828.24, 143,345.21 and 68,080.60 is: 93,992.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,828.24 : 143,345.21 = 68,080.60 : x
  2. Step 2: Convert to fraction form
    103,828.24/143,345.21 = 68,080.60/x
  3. Step 3: Cross multiply
    103,828.24x = 143,345.21 × 68,080.60
  4. Step 4: Simplify right side
    103,828.24x = 9,759,027,903.93
  5. Step 5: Solve for x
    x = 9,759,027,903.93/103,828.24
  6. Step 6: Final answer
    x = 93,992.04

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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.