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Finding the Fourth Proportional to 108,171.59, 162,257.49 and 28,209.49

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Solution

The fourth proportional to 108,171.59, 162,257.49 and 28,209.49 is: 42,314.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,171.59 : 162,257.49 = 28,209.49 : x
  2. Step 2: Convert to fraction form
    108,171.59/162,257.49 = 28,209.49/x
  3. Step 3: Cross multiply
    108,171.59x = 162,257.49 × 28,209.49
  4. Step 4: Simplify right side
    108,171.59x = 4,577,201,041.58
  5. Step 5: Solve for x
    x = 4,577,201,041.58/108,171.59
  6. Step 6: Final answer
    x = 42,314.26

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1.5x scale

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.