Home / 108,389.88-162,614.12-45,189.09

Finding the Fourth Proportional to 108,389.88, 162,614.12 and 45,189.09

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Solution

The fourth proportional to 108,389.88, 162,614.12 and 45,189.09 is: 67,795.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,389.88 : 162,614.12 = 45,189.09 : x
  2. Step 2: Convert to fraction form
    108,389.88/162,614.12 = 45,189.09/x
  3. Step 3: Cross multiply
    108,389.88x = 162,614.12 × 45,189.09
  4. Step 4: Simplify right side
    108,389.88x = 7,348,383,878.01
  5. Step 5: Solve for x
    x = 7,348,383,878.01/108,389.88
  6. Step 6: Final answer
    x = 67,795.85

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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.