Home / 142,900.11-197,218.41-82,486.98

Finding the Fourth Proportional to 142,900.11, 197,218.41 and 82,486.98

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Solution

The fourth proportional to 142,900.11, 197,218.41 and 82,486.98 is: 113,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,900.11 : 197,218.41 = 82,486.98 : x
  2. Step 2: Convert to fraction form
    142,900.11/197,218.41 = 82,486.98/x
  3. Step 3: Cross multiply
    142,900.11x = 197,218.41 × 82,486.98
  4. Step 4: Simplify right side
    142,900.11x = 16,267,951,041.30
  5. Step 5: Solve for x
    x = 16,267,951,041.30/142,900.11
  6. Step 6: Final answer
    x = 113,841.42

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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.