Home / 124,912.62-172,505.34-79,611.95

Finding the Fourth Proportional to 124,912.62, 172,505.34 and 79,611.95

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Solution

The fourth proportional to 124,912.62, 172,505.34 and 79,611.95 is: 109,944.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,912.62 : 172,505.34 = 79,611.95 : x
  2. Step 2: Convert to fraction form
    124,912.62/172,505.34 = 79,611.95/x
  3. Step 3: Cross multiply
    124,912.62x = 172,505.34 × 79,611.95
  4. Step 4: Simplify right side
    124,912.62x = 13,733,485,640.29
  5. Step 5: Solve for x
    x = 13,733,485,640.29/124,912.62
  6. Step 6: Final answer
    x = 109,944.74

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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.