Home / 143,241.37-197,661.52-82,815.91

Finding the Fourth Proportional to 143,241.37, 197,661.52 and 82,815.91

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Solution

The fourth proportional to 143,241.37, 197,661.52 and 82,815.91 is: 114,279.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,241.37 : 197,661.52 = 82,815.91 : x
  2. Step 2: Convert to fraction form
    143,241.37/197,661.52 = 82,815.91/x
  3. Step 3: Cross multiply
    143,241.37x = 197,661.52 × 82,815.91
  4. Step 4: Simplify right side
    143,241.37x = 16,369,518,260.15
  5. Step 5: Solve for x
    x = 16,369,518,260.15/143,241.37
  6. Step 6: Final answer
    x = 114,279.26

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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.