Home / 131,975.06-197,932.14-78,682.05

Finding the Fourth Proportional to 131,975.06, 197,932.14 and 78,682.05

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Solution

The fourth proportional to 131,975.06, 197,932.14 and 78,682.05 is: 118,004.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,975.06 : 197,932.14 = 78,682.05 : x
  2. Step 2: Convert to fraction form
    131,975.06/197,932.14 = 78,682.05/x
  3. Step 3: Cross multiply
    131,975.06x = 197,932.14 × 78,682.05
  4. Step 4: Simplify right side
    131,975.06x = 15,573,706,536.09
  5. Step 5: Solve for x
    x = 15,573,706,536.09/131,975.06
  6. Step 6: Final answer
    x = 118,004.93

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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.