Home / 142,713.75-196,944.99-79,055.67

Finding the Fourth Proportional to 142,713.75, 196,944.99 and 79,055.67

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Solution

The fourth proportional to 142,713.75, 196,944.99 and 79,055.67 is: 109,096.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,713.75 : 196,944.99 = 79,055.67 : x
  2. Step 2: Convert to fraction form
    142,713.75/196,944.99 = 79,055.67/x
  3. Step 3: Cross multiply
    142,713.75x = 196,944.99 × 79,055.67
  4. Step 4: Simplify right side
    142,713.75x = 15,569,618,137.59
  5. Step 5: Solve for x
    x = 15,569,618,137.59/142,713.75
  6. Step 6: Final answer
    x = 109,096.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.