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Finding the Fourth Proportional to 118,639.60, 178,060.20 and 48,569.20

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Solution

The fourth proportional to 118,639.60, 178,060.20 and 48,569.20 is: 72,895.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,639.60 : 178,060.20 = 48,569.20 : x
  2. Step 2: Convert to fraction form
    118,639.60/178,060.20 = 48,569.20/x
  3. Step 3: Cross multiply
    118,639.60x = 178,060.20 × 48,569.20
  4. Step 4: Simplify right side
    118,639.60x = 8,648,241,465.84
  5. Step 5: Solve for x
    x = 8,648,241,465.84/118,639.60
  6. Step 6: Final answer
    x = 72,895.07

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