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Finding the Fourth Proportional to 178,117.80, 266,804.10 and 83,428.80

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Solution

The fourth proportional to 178,117.80, 266,804.10 and 83,428.80 is: 124,968.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,117.80 : 266,804.10 = 83,428.80 : x
  2. Step 2: Convert to fraction form
    178,117.80/266,804.10 = 83,428.80/x
  3. Step 3: Cross multiply
    178,117.80x = 266,804.10 × 83,428.80
  4. Step 4: Simplify right side
    178,117.80x = 22,259,145,898.08
  5. Step 5: Solve for x
    x = 22,259,145,898.08/178,117.80
  6. Step 6: Final answer
    x = 124,968.68

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