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Finding the Fourth Proportional to 139,322.16, 208,994.31 and 83,542.86

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Solution

The fourth proportional to 139,322.16, 208,994.31 and 83,542.86 is: 125,320.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,322.16 : 208,994.31 = 83,542.86 : x
  2. Step 2: Convert to fraction form
    139,322.16/208,994.31 = 83,542.86/x
  3. Step 3: Cross multiply
    139,322.16x = 208,994.31 × 83,542.86
  4. Step 4: Simplify right side
    139,322.16x = 17,459,982,381.13
  5. Step 5: Solve for x
    x = 17,459,982,381.13/139,322.16
  6. Step 6: Final answer
    x = 125,320.93

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