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Finding the Fourth Proportional to 103,986.60, 143,501.04 and 56,239.98

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Solution

The fourth proportional to 103,986.60, 143,501.04 and 56,239.98 is: 77,610.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,986.60 : 143,501.04 = 56,239.98 : x
  2. Step 2: Convert to fraction form
    103,986.60/143,501.04 = 56,239.98/x
  3. Step 3: Cross multiply
    103,986.60x = 143,501.04 × 56,239.98
  4. Step 4: Simplify right side
    103,986.60x = 8,070,495,619.58
  5. Step 5: Solve for x
    x = 8,070,495,619.58/103,986.60
  6. Step 6: Final answer
    x = 77,610.92

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