Home / 149,143.22-205,817.68-82,075.22

Finding the Fourth Proportional to 149,143.22, 205,817.68 and 82,075.22

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Solution

The fourth proportional to 149,143.22, 205,817.68 and 82,075.22 is: 113,263.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,143.22 : 205,817.68 = 82,075.22 : x
  2. Step 2: Convert to fraction form
    149,143.22/205,817.68 = 82,075.22/x
  3. Step 3: Cross multiply
    149,143.22x = 205,817.68 × 82,075.22
  4. Step 4: Simplify right side
    149,143.22x = 16,892,531,675.25
  5. Step 5: Solve for x
    x = 16,892,531,675.25/149,143.22
  6. Step 6: Final answer
    x = 113,263.82

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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.