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Finding the Fourth Proportional to 124,295.70, 186,443.55 and 71,661.90

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Solution

The fourth proportional to 124,295.70, 186,443.55 and 71,661.90 is: 107,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,295.70 : 186,443.55 = 71,661.90 : x
  2. Step 2: Convert to fraction form
    124,295.70/186,443.55 = 71,661.90/x
  3. Step 3: Cross multiply
    124,295.70x = 186,443.55 × 71,661.90
  4. Step 4: Simplify right side
    124,295.70x = 13,360,899,035.75
  5. Step 5: Solve for x
    x = 13,360,899,035.75/124,295.70
  6. Step 6: Final answer
    x = 107,492.85

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