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Finding the Fourth Proportional to 137,290.23, 189,476.42 and 83,606.67

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Solution

The fourth proportional to 137,290.23, 189,476.42 and 83,606.67 is: 115,386.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,290.23 : 189,476.42 = 83,606.67 : x
  2. Step 2: Convert to fraction form
    137,290.23/189,476.42 = 83,606.67/x
  3. Step 3: Cross multiply
    137,290.23x = 189,476.42 × 83,606.67
  4. Step 4: Simplify right side
    137,290.23x = 15,841,492,101.69
  5. Step 5: Solve for x
    x = 15,841,492,101.69/137,290.23
  6. Step 6: Final answer
    x = 115,386.89

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