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Finding the Fourth Proportional to 103,869.42, 143,407.71 and 79,951.74

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Solution

The fourth proportional to 103,869.42, 143,407.71 and 79,951.74 is: 110,385.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,869.42 : 143,407.71 = 79,951.74 : x
  2. Step 2: Convert to fraction form
    103,869.42/143,407.71 = 79,951.74/x
  3. Step 3: Cross multiply
    103,869.42x = 143,407.71 × 79,951.74
  4. Step 4: Simplify right side
    103,869.42x = 11,465,695,943.92
  5. Step 5: Solve for x
    x = 11,465,695,943.92/103,869.42
  6. Step 6: Final answer
    x = 110,385.67

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