Home / 131,315.46-196,954.56-74,972.67

Finding the Fourth Proportional to 131,315.46, 196,954.56 and 74,972.67

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Solution

The fourth proportional to 131,315.46, 196,954.56 and 74,972.67 is: 112,448.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,315.46 : 196,954.56 = 74,972.67 : x
  2. Step 2: Convert to fraction form
    131,315.46/196,954.56 = 74,972.67/x
  3. Step 3: Cross multiply
    131,315.46x = 196,954.56 × 74,972.67
  4. Step 4: Simplify right side
    131,315.46x = 14,766,209,231.88
  5. Step 5: Solve for x
    x = 14,766,209,231.88/131,315.46
  6. Step 6: Final answer
    x = 112,448.37

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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.