Home / 108,416.20-162,624.30-71,091.40

Finding the Fourth Proportional to 108,416.20, 162,624.30 and 71,091.40

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Solution

The fourth proportional to 108,416.20, 162,624.30 and 71,091.40 is: 106,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,416.20 : 162,624.30 = 71,091.40 : x
  2. Step 2: Convert to fraction form
    108,416.20/162,624.30 = 71,091.40/x
  3. Step 3: Cross multiply
    108,416.20x = 162,624.30 × 71,091.40
  4. Step 4: Simplify right side
    108,416.20x = 11,561,189,161.02
  5. Step 5: Solve for x
    x = 11,561,189,161.02/108,416.20
  6. Step 6: Final answer
    x = 106,637.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.