Home / 133,284.80-199,603.20-70,817.60

Finding the Fourth Proportional to 133,284.80, 199,603.20 and 70,817.60

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Solution

The fourth proportional to 133,284.80, 199,603.20 and 70,817.60 is: 106,054.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,284.80 : 199,603.20 = 70,817.60 : x
  2. Step 2: Convert to fraction form
    133,284.80/199,603.20 = 70,817.60/x
  3. Step 3: Cross multiply
    133,284.80x = 199,603.20 × 70,817.60
  4. Step 4: Simplify right side
    133,284.80x = 14,135,419,576.32
  5. Step 5: Solve for x
    x = 14,135,419,576.32/133,284.80
  6. Step 6: Final answer
    x = 106,054.25

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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.