Home / 163,972.80-245,959.20-143,236.80

Finding the Fourth Proportional to 163,972.80, 245,959.20 and 143,236.80

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Solution

The fourth proportional to 163,972.80, 245,959.20 and 143,236.80 is: 214,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,972.80 : 245,959.20 = 143,236.80 : x
  2. Step 2: Convert to fraction form
    163,972.80/245,959.20 = 143,236.80/x
  3. Step 3: Cross multiply
    163,972.80x = 245,959.20 × 143,236.80
  4. Step 4: Simplify right side
    163,972.80x = 35,230,408,738.56
  5. Step 5: Solve for x
    x = 35,230,408,738.56/163,972.80
  6. Step 6: Final answer
    x = 214,855.20

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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.