Home / 120,497.09-166,281.57-66,786.98

Finding the Fourth Proportional to 120,497.09, 166,281.57 and 66,786.98

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Solution

The fourth proportional to 120,497.09, 166,281.57 and 66,786.98 is: 92,163.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,497.09 : 166,281.57 = 66,786.98 : x
  2. Step 2: Convert to fraction form
    120,497.09/166,281.57 = 66,786.98/x
  3. Step 3: Cross multiply
    120,497.09x = 166,281.57 × 66,786.98
  4. Step 4: Simplify right side
    120,497.09x = 11,105,443,058.55
  5. Step 5: Solve for x
    x = 11,105,443,058.55/120,497.09
  6. Step 6: Final answer
    x = 92,163.58

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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.