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Finding the Fourth Proportional to 172,550.48, 258,868.70 and 137,145.40

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Solution

The fourth proportional to 172,550.48, 258,868.70 and 137,145.40 is: 205,752.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,550.48 : 258,868.70 = 137,145.40 : x
  2. Step 2: Convert to fraction form
    172,550.48/258,868.70 = 137,145.40/x
  3. Step 3: Cross multiply
    172,550.48x = 258,868.70 × 137,145.40
  4. Step 4: Simplify right side
    172,550.48x = 35,502,651,408.98
  5. Step 5: Solve for x
    x = 35,502,651,408.98/172,550.48
  6. Step 6: Final answer
    x = 205,752.26

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