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Finding the Fourth Proportional to 122,801.16, 169,465.86 and 72,503.40

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Solution

The fourth proportional to 122,801.16, 169,465.86 and 72,503.40 is: 100,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,801.16 : 169,465.86 = 72,503.40 : x
  2. Step 2: Convert to fraction form
    122,801.16/169,465.86 = 72,503.40/x
  3. Step 3: Cross multiply
    122,801.16x = 169,465.86 × 72,503.40
  4. Step 4: Simplify right side
    122,801.16x = 12,286,851,033.92
  5. Step 5: Solve for x
    x = 12,286,851,033.92/122,801.16
  6. Step 6: Final answer
    x = 100,054.85

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