Home / 121,385.27-181,611.33-73,991.76

Finding the Fourth Proportional to 121,385.27, 181,611.33 and 73,991.76

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Solution

The fourth proportional to 121,385.27, 181,611.33 and 73,991.76 is: 110,703.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,385.27 : 181,611.33 = 73,991.76 : x
  2. Step 2: Convert to fraction form
    121,385.27/181,611.33 = 73,991.76/x
  3. Step 3: Cross multiply
    121,385.27x = 181,611.33 × 73,991.76
  4. Step 4: Simplify right side
    121,385.27x = 13,437,741,942.64
  5. Step 5: Solve for x
    x = 13,437,741,942.64/121,385.27
  6. Step 6: Final answer
    x = 110,703.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.