Home / 120,954.03-166,920.85-66,510.35

Finding the Fourth Proportional to 120,954.03, 166,920.85 and 66,510.35

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Solution

The fourth proportional to 120,954.03, 166,920.85 and 66,510.35 is: 91,786.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,954.03 : 166,920.85 = 66,510.35 : x
  2. Step 2: Convert to fraction form
    120,954.03/166,920.85 = 66,510.35/x
  3. Step 3: Cross multiply
    120,954.03x = 166,920.85 × 66,510.35
  4. Step 4: Simplify right side
    120,954.03x = 11,101,962,988.64
  5. Step 5: Solve for x
    x = 11,101,962,988.64/120,954.03
  6. Step 6: Final answer
    x = 91,786.63

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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.