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Finding the Fourth Proportional to 123,497.75, 170,339.30 and 104,552.87

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Solution

The fourth proportional to 123,497.75, 170,339.30 and 104,552.87 is: 144,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,497.75 : 170,339.30 = 104,552.87 : x
  2. Step 2: Convert to fraction form
    123,497.75/170,339.30 = 104,552.87/x
  3. Step 3: Cross multiply
    123,497.75x = 170,339.30 × 104,552.87
  4. Step 4: Simplify right side
    123,497.75x = 17,809,461,314.33
  5. Step 5: Solve for x
    x = 17,809,461,314.33/123,497.75
  6. Step 6: Final answer
    x = 144,208.80

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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.