Home / 142,604.46-196,795.71-78,943.32

Finding the Fourth Proportional to 142,604.46, 196,795.71 and 78,943.32

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Solution

The fourth proportional to 142,604.46, 196,795.71 and 78,943.32 is: 108,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,604.46 : 196,795.71 = 78,943.32 : x
  2. Step 2: Convert to fraction form
    142,604.46/196,795.71 = 78,943.32/x
  3. Step 3: Cross multiply
    142,604.46x = 196,795.71 × 78,943.32
  4. Step 4: Simplify right side
    142,604.46x = 15,535,706,709.16
  5. Step 5: Solve for x
    x = 15,535,706,709.16/142,604.46
  6. Step 6: Final answer
    x = 108,942.64

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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.