Home / 122,644.02-169,243.20-71,661.44

Finding the Fourth Proportional to 122,644.02, 169,243.20 and 71,661.44

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Solution

The fourth proportional to 122,644.02, 169,243.20 and 71,661.44 is: 98,889.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,644.02 : 169,243.20 = 71,661.44 : x
  2. Step 2: Convert to fraction form
    122,644.02/169,243.20 = 71,661.44/x
  3. Step 3: Cross multiply
    122,644.02x = 169,243.20 × 71,661.44
  4. Step 4: Simplify right side
    122,644.02x = 12,128,211,422.21
  5. Step 5: Solve for x
    x = 12,128,211,422.21/122,644.02
  6. Step 6: Final answer
    x = 98,889.55

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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.