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Finding the Fourth Proportional to 108,174.58, 162,262 and 28,212.50

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Solution

The fourth proportional to 108,174.58, 162,262 and 28,212.50 is: 42,318.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,174.58 : 162,262 = 28,212.50 : x
  2. Step 2: Convert to fraction form
    108,174.58/162,262 = 28,212.50/x
  3. Step 3: Cross multiply
    108,174.58x = 162,262 × 28,212.50
  4. Step 4: Simplify right side
    108,174.58x = 4,577,816,675
  5. Step 5: Solve for x
    x = 4,577,816,675/108,174.58
  6. Step 6: Final answer
    x = 42,318.78

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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.