Home / 108,939.40-162,971.70-94,310.80

Finding the Fourth Proportional to 108,939.40, 162,971.70 and 94,310.80

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Solution

The fourth proportional to 108,939.40, 162,971.70 and 94,310.80 is: 141,087.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,939.40 : 162,971.70 = 94,310.80 : x
  2. Step 2: Convert to fraction form
    108,939.40/162,971.70 = 94,310.80/x
  3. Step 3: Cross multiply
    108,939.40x = 162,971.70 × 94,310.80
  4. Step 4: Simplify right side
    108,939.40x = 15,369,991,404.36
  5. Step 5: Solve for x
    x = 15,369,991,404.36/108,939.40
  6. Step 6: Final answer
    x = 141,087.53

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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.