Home / 118,021.86-162,821.40-82,232.62

Finding the Fourth Proportional to 118,021.86, 162,821.40 and 82,232.62

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Solution

The fourth proportional to 118,021.86, 162,821.40 and 82,232.62 is: 113,447.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,021.86 : 162,821.40 = 82,232.62 : x
  2. Step 2: Convert to fraction form
    118,021.86/162,821.40 = 82,232.62/x
  3. Step 3: Cross multiply
    118,021.86x = 162,821.40 × 82,232.62
  4. Step 4: Simplify right side
    118,021.86x = 13,389,229,902.90
  5. Step 5: Solve for x
    x = 13,389,229,902.90/118,021.86
  6. Step 6: Final answer
    x = 113,447.04

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1.5x scale

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.