Home / 112,205.80-168,438.30-67,882.60

Finding the Fourth Proportional to 112,205.80, 168,438.30 and 67,882.60

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Solution

The fourth proportional to 112,205.80, 168,438.30 and 67,882.60 is: 101,902.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,205.80 : 168,438.30 = 67,882.60 : x
  2. Step 2: Convert to fraction form
    112,205.80/168,438.30 = 67,882.60/x
  3. Step 3: Cross multiply
    112,205.80x = 168,438.30 × 67,882.60
  4. Step 4: Simplify right side
    112,205.80x = 11,434,029,743.58
  5. Step 5: Solve for x
    x = 11,434,029,743.58/112,205.80
  6. Step 6: Final answer
    x = 101,902.31

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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.