Home / 142,815.30-197,077.51-82,382.33

Finding the Fourth Proportional to 142,815.30, 197,077.51 and 82,382.33

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Solution

The fourth proportional to 142,815.30, 197,077.51 and 82,382.33 is: 113,683.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,815.30 : 197,077.51 = 82,382.33 : x
  2. Step 2: Convert to fraction form
    142,815.30/197,077.51 = 82,382.33/x
  3. Step 3: Cross multiply
    142,815.30x = 197,077.51 × 82,382.33
  4. Step 4: Simplify right side
    142,815.30x = 16,235,704,464.40
  5. Step 5: Solve for x
    x = 16,235,704,464.40/142,815.30
  6. Step 6: Final answer
    x = 113,683.23

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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.