Home / 108,137.14-161,988.21-53,938.42

Finding the Fourth Proportional to 108,137.14, 161,988.21 and 53,938.42

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Solution

The fourth proportional to 108,137.14, 161,988.21 and 53,938.42 is: 80,799.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,137.14 : 161,988.21 = 53,938.42 : x
  2. Step 2: Convert to fraction form
    108,137.14/161,988.21 = 53,938.42/x
  3. Step 3: Cross multiply
    108,137.14x = 161,988.21 × 53,938.42
  4. Step 4: Simplify right side
    108,137.14x = 8,737,388,106.03
  5. Step 5: Solve for x
    x = 8,737,388,106.03/108,137.14
  6. Step 6: Final answer
    x = 80,799.14

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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.