Home / 112,149.40-168,315.90-111,274.60

Finding the Fourth Proportional to 112,149.40, 168,315.90 and 111,274.60

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Solution

The fourth proportional to 112,149.40, 168,315.90 and 111,274.60 is: 167,002.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,149.40 : 168,315.90 = 111,274.60 : x
  2. Step 2: Convert to fraction form
    112,149.40/168,315.90 = 111,274.60/x
  3. Step 3: Cross multiply
    112,149.40x = 168,315.90 × 111,274.60
  4. Step 4: Simplify right side
    112,149.40x = 18,729,284,446.14
  5. Step 5: Solve for x
    x = 18,729,284,446.14/112,149.40
  6. Step 6: Final answer
    x = 167,002.98

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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.