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Finding the Fourth Proportional to 171,422.88, 236,485.02 and 111,013

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Solution

The fourth proportional to 171,422.88, 236,485.02 and 111,013 is: 153,147.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,422.88 : 236,485.02 = 111,013 : x
  2. Step 2: Convert to fraction form
    171,422.88/236,485.02 = 111,013/x
  3. Step 3: Cross multiply
    171,422.88x = 236,485.02 × 111,013
  4. Step 4: Simplify right side
    171,422.88x = 26,252,911,525.26
  5. Step 5: Solve for x
    x = 26,252,911,525.26/171,422.88
  6. Step 6: Final answer
    x = 153,147.07

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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.