Home / 142,607.46-196,818.90-82,166.49

Finding the Fourth Proportional to 142,607.46, 196,818.90 and 82,166.49

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Solution

The fourth proportional to 142,607.46, 196,818.90 and 82,166.49 is: 113,401.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,607.46 : 196,818.90 = 82,166.49 : x
  2. Step 2: Convert to fraction form
    142,607.46/196,818.90 = 82,166.49/x
  3. Step 3: Cross multiply
    142,607.46x = 196,818.90 × 82,166.49
  4. Step 4: Simplify right side
    142,607.46x = 16,171,918,178.66
  5. Step 5: Solve for x
    x = 16,171,918,178.66/142,607.46
  6. Step 6: Final answer
    x = 113,401.63

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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.