Home / 138,320.04-190,879.77-77,891.40

Finding the Fourth Proportional to 138,320.04, 190,879.77 and 77,891.40

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Solution

The fourth proportional to 138,320.04, 190,879.77 and 77,891.40 is: 107,489.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,320.04 : 190,879.77 = 77,891.40 : x
  2. Step 2: Convert to fraction form
    138,320.04/190,879.77 = 77,891.40/x
  3. Step 3: Cross multiply
    138,320.04x = 190,879.77 × 77,891.40
  4. Step 4: Simplify right side
    138,320.04x = 14,867,892,516.98
  5. Step 5: Solve for x
    x = 14,867,892,516.98/138,320.04
  6. Step 6: Final answer
    x = 107,489.07

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