Home / 143,293.57-197,729.40-82,855.06

Finding the Fourth Proportional to 143,293.57, 197,729.40 and 82,855.06

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Solution

The fourth proportional to 143,293.57, 197,729.40 and 82,855.06 is: 114,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,293.57 : 197,729.40 = 82,855.06 : x
  2. Step 2: Convert to fraction form
    143,293.57/197,729.40 = 82,855.06/x
  3. Step 3: Cross multiply
    143,293.57x = 197,729.40 × 82,855.06
  4. Step 4: Simplify right side
    143,293.57x = 16,382,880,806.44
  5. Step 5: Solve for x
    x = 16,382,880,806.44/143,293.57
  6. Step 6: Final answer
    x = 114,330.89

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1.5x scale

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.