Home / 108,682.52-162,992.16-42,107.80

Finding the Fourth Proportional to 108,682.52, 162,992.16 and 42,107.80

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Solution

The fourth proportional to 108,682.52, 162,992.16 and 42,107.80 is: 63,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,682.52 : 162,992.16 = 42,107.80 : x
  2. Step 2: Convert to fraction form
    108,682.52/162,992.16 = 42,107.80/x
  3. Step 3: Cross multiply
    108,682.52x = 162,992.16 × 42,107.80
  4. Step 4: Simplify right side
    108,682.52x = 6,863,241,274.85
  5. Step 5: Solve for x
    x = 6,863,241,274.85/108,682.52
  6. Step 6: Final answer
    x = 63,149.45

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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.