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Finding the Fourth Proportional to 108,173.58, 162,260.50 and 28,211.50

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Solution

The fourth proportional to 108,173.58, 162,260.50 and 28,211.50 is: 42,317.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,173.58 : 162,260.50 = 28,211.50 : x
  2. Step 2: Convert to fraction form
    108,173.58/162,260.50 = 28,211.50/x
  3. Step 3: Cross multiply
    108,173.58x = 162,260.50 × 28,211.50
  4. Step 4: Simplify right side
    108,173.58x = 4,577,612,095.75
  5. Step 5: Solve for x
    x = 4,577,612,095.75/108,173.58
  6. Step 6: Final answer
    x = 42,317.28

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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.