Home / 142,022.60-213,033.90-42,198.20

Finding the Fourth Proportional to 142,022.60, 213,033.90 and 42,198.20

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Solution

The fourth proportional to 142,022.60, 213,033.90 and 42,198.20 is: 63,297.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,022.60 : 213,033.90 = 42,198.20 : x
  2. Step 2: Convert to fraction form
    142,022.60/213,033.90 = 42,198.20/x
  3. Step 3: Cross multiply
    142,022.60x = 213,033.90 × 42,198.20
  4. Step 4: Simplify right side
    142,022.60x = 8,989,647,118.98
  5. Step 5: Solve for x
    x = 8,989,647,118.98/142,022.60
  6. Step 6: Final answer
    x = 63,297.30

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1.5x scale

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.