Home / 111,021.90-166,496.40-40,892.10

Finding the Fourth Proportional to 111,021.90, 166,496.40 and 40,892.10

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Solution

The fourth proportional to 111,021.90, 166,496.40 and 40,892.10 is: 61,324.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,021.90 : 166,496.40 = 40,892.10 : x
  2. Step 2: Convert to fraction form
    111,021.90/166,496.40 = 40,892.10/x
  3. Step 3: Cross multiply
    111,021.90x = 166,496.40 × 40,892.10
  4. Step 4: Simplify right side
    111,021.90x = 6,808,387,438.44
  5. Step 5: Solve for x
    x = 6,808,387,438.44/111,021.90
  6. Step 6: Final answer
    x = 61,324.72

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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.