Home / 133,080.12-183,647.82-72,651.96

Finding the Fourth Proportional to 133,080.12, 183,647.82 and 72,651.96

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Solution

The fourth proportional to 133,080.12, 183,647.82 and 72,651.96 is: 100,258.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,080.12 : 183,647.82 = 72,651.96 : x
  2. Step 2: Convert to fraction form
    133,080.12/183,647.82 = 72,651.96/x
  3. Step 3: Cross multiply
    133,080.12x = 183,647.82 × 72,651.96
  4. Step 4: Simplify right side
    133,080.12x = 13,342,374,072.73
  5. Step 5: Solve for x
    x = 13,342,374,072.73/133,080.12
  6. Step 6: Final answer
    x = 100,258.21

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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.