Home / 143,158.41-197,587.62-82,731.60

Finding the Fourth Proportional to 143,158.41, 197,587.62 and 82,731.60

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Solution

The fourth proportional to 143,158.41, 197,587.62 and 82,731.60 is: 114,186.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,158.41 : 197,587.62 = 82,731.60 : x
  2. Step 2: Convert to fraction form
    143,158.41/197,587.62 = 82,731.60/x
  3. Step 3: Cross multiply
    143,158.41x = 197,587.62 × 82,731.60
  4. Step 4: Simplify right side
    143,158.41x = 16,346,739,942.79
  5. Step 5: Solve for x
    x = 16,346,739,942.79/143,158.41
  6. Step 6: Final answer
    x = 114,186.38

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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.