Home / 161,632.64-242,181.62-82,638.20

Finding the Fourth Proportional to 161,632.64, 242,181.62 and 82,638.20

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Solution

The fourth proportional to 161,632.64, 242,181.62 and 82,638.20 is: 123,820.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,632.64 : 242,181.62 = 82,638.20 : x
  2. Step 2: Convert to fraction form
    161,632.64/242,181.62 = 82,638.20/x
  3. Step 3: Cross multiply
    161,632.64x = 242,181.62 × 82,638.20
  4. Step 4: Simplify right side
    161,632.64x = 20,013,453,149.88
  5. Step 5: Solve for x
    x = 20,013,453,149.88/161,632.64
  6. Step 6: Final answer
    x = 123,820.62

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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.