Home / 142,597.20-196,788.78-82,163.16

Finding the Fourth Proportional to 142,597.20, 196,788.78 and 82,163.16

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Solution

The fourth proportional to 142,597.20, 196,788.78 and 82,163.16 is: 113,387.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,597.20 : 196,788.78 = 82,163.16 : x
  2. Step 2: Convert to fraction form
    142,597.20/196,788.78 = 82,163.16/x
  3. Step 3: Cross multiply
    142,597.20x = 196,788.78 × 82,163.16
  4. Step 4: Simplify right side
    142,597.20x = 16,168,788,017.34
  5. Step 5: Solve for x
    x = 16,168,788,017.34/142,597.20
  6. Step 6: Final answer
    x = 113,387.84

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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.