Home / 114,915.20-172,372.80-108,003.20

Finding the Fourth Proportional to 114,915.20, 172,372.80 and 108,003.20

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Solution

The fourth proportional to 114,915.20, 172,372.80 and 108,003.20 is: 162,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,915.20 : 172,372.80 = 108,003.20 : x
  2. Step 2: Convert to fraction form
    114,915.20/172,372.80 = 108,003.20/x
  3. Step 3: Cross multiply
    114,915.20x = 172,372.80 × 108,003.20
  4. Step 4: Simplify right side
    114,915.20x = 18,616,813,992.96
  5. Step 5: Solve for x
    x = 18,616,813,992.96/114,915.20
  6. Step 6: Final answer
    x = 162,004.80

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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.