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Finding the Fourth Proportional to 100,160.88, 138,212.44 and 59,866.64

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Solution

The fourth proportional to 100,160.88, 138,212.44 and 59,866.64 is: 82,610.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,160.88 : 138,212.44 = 59,866.64 : x
  2. Step 2: Convert to fraction form
    100,160.88/138,212.44 = 59,866.64/x
  3. Step 3: Cross multiply
    100,160.88x = 138,212.44 × 59,866.64
  4. Step 4: Simplify right side
    100,160.88x = 8,274,314,389.00
  5. Step 5: Solve for x
    x = 8,274,314,389.00/100,160.88
  6. Step 6: Final answer
    x = 82,610.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.