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Finding the Fourth Proportional to 124,915.80, 172,382.40 and 68,326.50

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Solution

The fourth proportional to 124,915.80, 172,382.40 and 68,326.50 is: 94,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,915.80 : 172,382.40 = 68,326.50 : x
  2. Step 2: Convert to fraction form
    124,915.80/172,382.40 = 68,326.50/x
  3. Step 3: Cross multiply
    124,915.80x = 172,382.40 × 68,326.50
  4. Step 4: Simplify right side
    124,915.80x = 11,778,286,053.60
  5. Step 5: Solve for x
    x = 11,778,286,053.60/124,915.80
  6. Step 6: Final answer
    x = 94,289.80

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