Home / 122,629.65-169,228.03-68,913.51

Finding the Fourth Proportional to 122,629.65, 169,228.03 and 68,913.51

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Solution

The fourth proportional to 122,629.65, 169,228.03 and 68,913.51 is: 95,100.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,629.65 : 169,228.03 = 68,913.51 : x
  2. Step 2: Convert to fraction form
    122,629.65/169,228.03 = 68,913.51/x
  3. Step 3: Cross multiply
    122,629.65x = 169,228.03 × 68,913.51
  4. Step 4: Simplify right side
    122,629.65x = 11,662,097,537.69
  5. Step 5: Solve for x
    x = 11,662,097,537.69/122,629.65
  6. Step 6: Final answer
    x = 95,100.15

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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.