Home / 131,172.26-196,820.69-67,980.65

Finding the Fourth Proportional to 131,172.26, 196,820.69 and 67,980.65

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Solution

The fourth proportional to 131,172.26, 196,820.69 and 67,980.65 is: 102,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,172.26 : 196,820.69 = 67,980.65 : x
  2. Step 2: Convert to fraction form
    131,172.26/196,820.69 = 67,980.65/x
  3. Step 3: Cross multiply
    131,172.26x = 196,820.69 × 67,980.65
  4. Step 4: Simplify right side
    131,172.26x = 13,379,997,115.64
  5. Step 5: Solve for x
    x = 13,379,997,115.64/131,172.26
  6. Step 6: Final answer
    x = 102,003.26

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1.5x scale

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.