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Finding the Fourth Proportional to 99,254.45, 136,971.50 and 56,813.00

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Solution

The fourth proportional to 99,254.45, 136,971.50 and 56,813.00 is: 78,402.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,254.45 : 136,971.50 = 56,813.00 : x
  2. Step 2: Convert to fraction form
    99,254.45/136,971.50 = 56,813.00/x
  3. Step 3: Cross multiply
    99,254.45x = 136,971.50 × 56,813.00
  4. Step 4: Simplify right side
    99,254.45x = 7,781,760,860.58
  5. Step 5: Solve for x
    x = 7,781,760,860.58/99,254.45
  6. Step 6: Final answer
    x = 78,402.13

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