Home / 107,646.02-161,321.40-68,132.60

Finding the Fourth Proportional to 107,646.02, 161,321.40 and 68,132.60

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Solution

The fourth proportional to 107,646.02, 161,321.40 and 68,132.60 is: 102,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,646.02 : 161,321.40 = 68,132.60 : x
  2. Step 2: Convert to fraction form
    107,646.02/161,321.40 = 68,132.60/x
  3. Step 3: Cross multiply
    107,646.02x = 161,321.40 × 68,132.60
  4. Step 4: Simplify right side
    107,646.02x = 10,991,245,611.03
  5. Step 5: Solve for x
    x = 10,991,245,611.03/107,646.02
  6. Step 6: Final answer
    x = 102,105.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.