Home / 108,618.40-162,927.60-92,215.90

Finding the Fourth Proportional to 108,618.40, 162,927.60 and 92,215.90

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Solution

The fourth proportional to 108,618.40, 162,927.60 and 92,215.90 is: 138,323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,618.40 : 162,927.60 = 92,215.90 : x
  2. Step 2: Convert to fraction form
    108,618.40/162,927.60 = 92,215.90/x
  3. Step 3: Cross multiply
    108,618.40x = 162,927.60 × 92,215.90
  4. Step 4: Simplify right side
    108,618.40x = 15,024,515,268.84
  5. Step 5: Solve for x
    x = 15,024,515,268.84/108,618.40
  6. Step 6: Final answer
    x = 138,323.85

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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.