Home / 131,450.88-197,238.50-68,237.40

Finding the Fourth Proportional to 131,450.88, 197,238.50 and 68,237.40

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Solution

The fourth proportional to 131,450.88, 197,238.50 and 68,237.40 is: 102,388.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,450.88 : 197,238.50 = 68,237.40 : x
  2. Step 2: Convert to fraction form
    131,450.88/197,238.50 = 68,237.40/x
  3. Step 3: Cross multiply
    131,450.88x = 197,238.50 × 68,237.40
  4. Step 4: Simplify right side
    131,450.88x = 13,459,042,419.90
  5. Step 5: Solve for x
    x = 13,459,042,419.90/131,450.88
  6. Step 6: Final answer
    x = 102,388.38

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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.