Home / 102,022.20-153,033.30-82,339.20

Finding the Fourth Proportional to 102,022.20, 153,033.30 and 82,339.20

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Solution

The fourth proportional to 102,022.20, 153,033.30 and 82,339.20 is: 123,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,022.20 : 153,033.30 = 82,339.20 : x
  2. Step 2: Convert to fraction form
    102,022.20/153,033.30 = 82,339.20/x
  3. Step 3: Cross multiply
    102,022.20x = 153,033.30 × 82,339.20
  4. Step 4: Simplify right side
    102,022.20x = 12,600,639,495.36
  5. Step 5: Solve for x
    x = 12,600,639,495.36/102,022.20
  6. Step 6: Final answer
    x = 123,508.80

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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.