Home / 111,312.90-166,550.58-68,469.30

Finding the Fourth Proportional to 111,312.90, 166,550.58 and 68,469.30

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Solution

The fourth proportional to 111,312.90, 166,550.58 and 68,469.30 is: 102,446.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,312.90 : 166,550.58 = 68,469.30 : x
  2. Step 2: Convert to fraction form
    111,312.90/166,550.58 = 68,469.30/x
  3. Step 3: Cross multiply
    111,312.90x = 166,550.58 × 68,469.30
  4. Step 4: Simplify right side
    111,312.90x = 11,403,601,627.19
  5. Step 5: Solve for x
    x = 11,403,601,627.19/111,312.90
  6. Step 6: Final answer
    x = 102,446.36

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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.