Home / 143,255.80-197,671.02-82,814.68

Finding the Fourth Proportional to 143,255.80, 197,671.02 and 82,814.68

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Solution

The fourth proportional to 143,255.80, 197,671.02 and 82,814.68 is: 114,271.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,255.80 : 197,671.02 = 82,814.68 : x
  2. Step 2: Convert to fraction form
    143,255.80/197,671.02 = 82,814.68/x
  3. Step 3: Cross multiply
    143,255.80x = 197,671.02 × 82,814.68
  4. Step 4: Simplify right side
    143,255.80x = 16,370,062,266.57
  5. Step 5: Solve for x
    x = 16,370,062,266.57/143,255.80
  6. Step 6: Final answer
    x = 114,271.55

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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.