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Finding the Fourth Proportional to 115,619, 159,554.22 and 62,627

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Solution

The fourth proportional to 115,619, 159,554.22 and 62,627 is: 86,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,619 : 159,554.22 = 62,627 : x
  2. Step 2: Convert to fraction form
    115,619/159,554.22 = 62,627/x
  3. Step 3: Cross multiply
    115,619x = 159,554.22 × 62,627
  4. Step 4: Simplify right side
    115,619x = 9,992,402,135.94
  5. Step 5: Solve for x
    x = 9,992,402,135.94/115,619
  6. Step 6: Final answer
    x = 86,425.26

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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.