Home / 120,510.06-166,313.84-66,811.92

Finding the Fourth Proportional to 120,510.06, 166,313.84 and 66,811.92

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Solution

The fourth proportional to 120,510.06, 166,313.84 and 66,811.92 is: 92,205.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,510.06 : 166,313.84 = 66,811.92 : x
  2. Step 2: Convert to fraction form
    120,510.06/166,313.84 = 66,811.92/x
  3. Step 3: Cross multiply
    120,510.06x = 166,313.84 × 66,811.92
  4. Step 4: Simplify right side
    120,510.06x = 11,111,746,972.97
  5. Step 5: Solve for x
    x = 11,111,746,972.97/120,510.06
  6. Step 6: Final answer
    x = 92,205.97

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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.