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Finding the Fourth Proportional to 113,605.32, 156,778.50 and 65,211.42

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Solution

The fourth proportional to 113,605.32, 156,778.50 and 65,211.42 is: 89,993.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,605.32 : 156,778.50 = 65,211.42 : x
  2. Step 2: Convert to fraction form
    113,605.32/156,778.50 = 65,211.42/x
  3. Step 3: Cross multiply
    113,605.32x = 156,778.50 × 65,211.42
  4. Step 4: Simplify right side
    113,605.32x = 10,223,748,610.47
  5. Step 5: Solve for x
    x = 10,223,748,610.47/113,605.32
  6. Step 6: Final answer
    x = 89,993.57

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