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Finding the Fourth Proportional to 124,715.94, 172,111.78 and 68,130.96

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Solution

The fourth proportional to 124,715.94, 172,111.78 and 68,130.96 is: 94,022.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,715.94 : 172,111.78 = 68,130.96 : x
  2. Step 2: Convert to fraction form
    124,715.94/172,111.78 = 68,130.96/x
  3. Step 3: Cross multiply
    124,715.94x = 172,111.78 × 68,130.96
  4. Step 4: Simplify right side
    124,715.94x = 11,726,140,798.71
  5. Step 5: Solve for x
    x = 11,726,140,798.71/124,715.94
  6. Step 6: Final answer
    x = 94,022.79

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