Home / 103,619.51-155,429.27-68,550.97

Finding the Fourth Proportional to 103,619.51, 155,429.27 and 68,550.97

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Solution

The fourth proportional to 103,619.51, 155,429.27 and 68,550.97 is: 102,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.51 : 155,429.27 = 68,550.97 : x
  2. Step 2: Convert to fraction form
    103,619.51/155,429.27 = 68,550.97/x
  3. Step 3: Cross multiply
    103,619.51x = 155,429.27 × 68,550.97
  4. Step 4: Simplify right side
    103,619.51x = 10,654,827,224.89
  5. Step 5: Solve for x
    x = 10,654,827,224.89/103,619.51
  6. Step 6: Final answer
    x = 102,826.46

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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.