Home / 108,134.40-162,091.20-73,077.60

Finding the Fourth Proportional to 108,134.40, 162,091.20 and 73,077.60

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Solution

The fourth proportional to 108,134.40, 162,091.20 and 73,077.60 is: 109,541.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,134.40 : 162,091.20 = 73,077.60 : x
  2. Step 2: Convert to fraction form
    108,134.40/162,091.20 = 73,077.60/x
  3. Step 3: Cross multiply
    108,134.40x = 162,091.20 × 73,077.60
  4. Step 4: Simplify right side
    108,134.40x = 11,845,235,877.12
  5. Step 5: Solve for x
    x = 11,845,235,877.12/108,134.40
  6. Step 6: Final answer
    x = 109,541.79

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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.