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Finding the Fourth Proportional to 146,730.80, 220,169.10 and 57,987.20

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Solution

The fourth proportional to 146,730.80, 220,169.10 and 57,987.20 is: 87,009.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,730.80 : 220,169.10 = 57,987.20 : x
  2. Step 2: Convert to fraction form
    146,730.80/220,169.10 = 57,987.20/x
  3. Step 3: Cross multiply
    146,730.80x = 220,169.10 × 57,987.20
  4. Step 4: Simplify right side
    146,730.80x = 12,766,989,635.52
  5. Step 5: Solve for x
    x = 12,766,989,635.52/146,730.80
  6. Step 6: Final answer
    x = 87,009.61

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