Home / 111,941.10-167,911.65-76,511.70

Finding the Fourth Proportional to 111,941.10, 167,911.65 and 76,511.70

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Solution

The fourth proportional to 111,941.10, 167,911.65 and 76,511.70 is: 114,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,941.10 : 167,911.65 = 76,511.70 : x
  2. Step 2: Convert to fraction form
    111,941.10/167,911.65 = 76,511.70/x
  3. Step 3: Cross multiply
    111,941.10x = 167,911.65 × 76,511.70
  4. Step 4: Simplify right side
    111,941.10x = 12,847,205,791.31
  5. Step 5: Solve for x
    x = 12,847,205,791.31/111,941.10
  6. Step 6: Final answer
    x = 114,767.55

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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.