Home / 142,486.24-196,636.80-78,822.94

Finding the Fourth Proportional to 142,486.24, 196,636.80 and 78,822.94

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Solution

The fourth proportional to 142,486.24, 196,636.80 and 78,822.94 is: 108,778.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,486.24 : 196,636.80 = 78,822.94 : x
  2. Step 2: Convert to fraction form
    142,486.24/196,636.80 = 78,822.94/x
  3. Step 3: Cross multiply
    142,486.24x = 196,636.80 × 78,822.94
  4. Step 4: Simplify right side
    142,486.24x = 15,499,490,688.19
  5. Step 5: Solve for x
    x = 15,499,490,688.19/142,486.24
  6. Step 6: Final answer
    x = 108,778.86

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