Home / 162,428.20-243,383.10-135,989.80

Finding the Fourth Proportional to 162,428.20, 243,383.10 and 135,989.80

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Solution

The fourth proportional to 162,428.20, 243,383.10 and 135,989.80 is: 203,767.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,428.20 : 243,383.10 = 135,989.80 : x
  2. Step 2: Convert to fraction form
    162,428.20/243,383.10 = 135,989.80/x
  3. Step 3: Cross multiply
    162,428.20x = 243,383.10 × 135,989.80
  4. Step 4: Simplify right side
    162,428.20x = 33,097,619,092.38
  5. Step 5: Solve for x
    x = 33,097,619,092.38/162,428.20
  6. Step 6: Final answer
    x = 203,767.69

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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.