Home / 142,095.94-196,092.41-78,433.75

Finding the Fourth Proportional to 142,095.94, 196,092.41 and 78,433.75

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Solution

The fourth proportional to 142,095.94, 196,092.41 and 78,433.75 is: 108,238.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,095.94 : 196,092.41 = 78,433.75 : x
  2. Step 2: Convert to fraction form
    142,095.94/196,092.41 = 78,433.75/x
  3. Step 3: Cross multiply
    142,095.94x = 196,092.41 × 78,433.75
  4. Step 4: Simplify right side
    142,095.94x = 15,380,263,356.97
  5. Step 5: Solve for x
    x = 15,380,263,356.97/142,095.94
  6. Step 6: Final answer
    x = 108,238.59

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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.