Home / 149,143.70-205,818.33-82,075.70

Finding the Fourth Proportional to 149,143.70, 205,818.33 and 82,075.70

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Solution

The fourth proportional to 149,143.70, 205,818.33 and 82,075.70 is: 113,264.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,143.70 : 205,818.33 = 82,075.70 : x
  2. Step 2: Convert to fraction form
    149,143.70/205,818.33 = 82,075.70/x
  3. Step 3: Cross multiply
    149,143.70x = 205,818.33 × 82,075.70
  4. Step 4: Simplify right side
    149,143.70x = 16,892,682,478.49
  5. Step 5: Solve for x
    x = 16,892,682,478.49/149,143.70
  6. Step 6: Final answer
    x = 113,264.48

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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.