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Finding the Fourth Proportional to 115,966.40, 173,690.40 and 113,374.40

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Solution

The fourth proportional to 115,966.40, 173,690.40 and 113,374.40 is: 169,808.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,966.40 : 173,690.40 = 113,374.40 : x
  2. Step 2: Convert to fraction form
    115,966.40/173,690.40 = 113,374.40/x
  3. Step 3: Cross multiply
    115,966.40x = 173,690.40 × 113,374.40
  4. Step 4: Simplify right side
    115,966.40x = 19,692,044,885.76
  5. Step 5: Solve for x
    x = 19,692,044,885.76/115,966.40
  6. Step 6: Final answer
    x = 169,808.19

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