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Finding the Fourth Proportional to 425,128.90, 637,674.90 and 158,891.72

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Solution

The fourth proportional to 425,128.90, 637,674.90 and 158,891.72 is: 238,330.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,128.90 : 637,674.90 = 158,891.72 : x
  2. Step 2: Convert to fraction form
    425,128.90/637,674.90 = 158,891.72/x
  3. Step 3: Cross multiply
    425,128.90x = 637,674.90 × 158,891.72
  4. Step 4: Simplify right side
    425,128.90x = 101,321,261,661.83
  5. Step 5: Solve for x
    x = 101,321,261,661.83/425,128.90
  6. Step 6: Final answer
    x = 238,330.68

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