Home / 161,330.24-242,020.16-82,401.60

Finding the Fourth Proportional to 161,330.24, 242,020.16 and 82,401.60

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Solution

The fourth proportional to 161,330.24, 242,020.16 and 82,401.60 is: 123,615.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,330.24 : 242,020.16 = 82,401.60 : x
  2. Step 2: Convert to fraction form
    161,330.24/242,020.16 = 82,401.60/x
  3. Step 3: Cross multiply
    161,330.24x = 242,020.16 × 82,401.60
  4. Step 4: Simplify right side
    161,330.24x = 19,942,848,416.26
  5. Step 5: Solve for x
    x = 19,942,848,416.26/161,330.24
  6. Step 6: Final answer
    x = 123,615.07

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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.