Home / 148,171.64-204,469.02-81,090.68

Finding the Fourth Proportional to 148,171.64, 204,469.02 and 81,090.68

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Solution

The fourth proportional to 148,171.64, 204,469.02 and 81,090.68 is: 111,900.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,171.64 : 204,469.02 = 81,090.68 : x
  2. Step 2: Convert to fraction form
    148,171.64/204,469.02 = 81,090.68/x
  3. Step 3: Cross multiply
    148,171.64x = 204,469.02 × 81,090.68
  4. Step 4: Simplify right side
    148,171.64x = 16,580,531,870.73
  5. Step 5: Solve for x
    x = 16,580,531,870.73/148,171.64
  6. Step 6: Final answer
    x = 111,900.85

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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.