Home / 102,782.44-154,063.06-67,230.36

Finding the Fourth Proportional to 102,782.44, 154,063.06 and 67,230.36

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Solution

The fourth proportional to 102,782.44, 154,063.06 and 67,230.36 is: 100,773.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,782.44 : 154,063.06 = 67,230.36 : x
  2. Step 2: Convert to fraction form
    102,782.44/154,063.06 = 67,230.36/x
  3. Step 3: Cross multiply
    102,782.44x = 154,063.06 × 67,230.36
  4. Step 4: Simplify right side
    102,782.44x = 10,357,714,986.50
  5. Step 5: Solve for x
    x = 10,357,714,986.50/102,782.44
  6. Step 6: Final answer
    x = 100,773.20

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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.