Home / 120,811.04-166,721.34-67,101.02

Finding the Fourth Proportional to 120,811.04, 166,721.34 and 67,101.02

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Solution

The fourth proportional to 120,811.04, 166,721.34 and 67,101.02 is: 92,600.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,811.04 : 166,721.34 = 67,101.02 : x
  2. Step 2: Convert to fraction form
    120,811.04/166,721.34 = 67,101.02/x
  3. Step 3: Cross multiply
    120,811.04x = 166,721.34 × 67,101.02
  4. Step 4: Simplify right side
    120,811.04x = 11,187,171,969.77
  5. Step 5: Solve for x
    x = 11,187,171,969.77/120,811.04
  6. Step 6: Final answer
    x = 92,600.58

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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.