Home / 155,022.66-213,933.96-87,043.41

Finding the Fourth Proportional to 155,022.66, 213,933.96 and 87,043.41

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Solution

The fourth proportional to 155,022.66, 213,933.96 and 87,043.41 is: 120,121.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,022.66 : 213,933.96 = 87,043.41 : x
  2. Step 2: Convert to fraction form
    155,022.66/213,933.96 = 87,043.41/x
  3. Step 3: Cross multiply
    155,022.66x = 213,933.96 × 87,043.41
  4. Step 4: Simplify right side
    155,022.66x = 18,621,541,393.20
  5. Step 5: Solve for x
    x = 18,621,541,393.20/155,022.66
  6. Step 6: Final answer
    x = 120,121.42

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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.