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Finding the Fourth Proportional to 155,308.20, 214,249.50 and 98,737.80

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Solution

The fourth proportional to 155,308.20, 214,249.50 and 98,737.80 is: 136,209.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,308.20 : 214,249.50 = 98,737.80 : x
  2. Step 2: Convert to fraction form
    155,308.20/214,249.50 = 98,737.80/x
  3. Step 3: Cross multiply
    155,308.20x = 214,249.50 × 98,737.80
  4. Step 4: Simplify right side
    155,308.20x = 21,154,524,281.10
  5. Step 5: Solve for x
    x = 21,154,524,281.10/155,308.20
  6. Step 6: Final answer
    x = 136,209.96

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