Home / 142,917.75-197,212.32-82,507.88

Finding the Fourth Proportional to 142,917.75, 197,212.32 and 82,507.88

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Solution

The fourth proportional to 142,917.75, 197,212.32 and 82,507.88 is: 113,852.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,917.75 : 197,212.32 = 82,507.88 : x
  2. Step 2: Convert to fraction form
    142,917.75/197,212.32 = 82,507.88/x
  3. Step 3: Cross multiply
    142,917.75x = 197,212.32 × 82,507.88
  4. Step 4: Simplify right side
    142,917.75x = 16,271,570,926.11
  5. Step 5: Solve for x
    x = 16,271,570,926.11/142,917.75
  6. Step 6: Final answer
    x = 113,852.69

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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.