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Finding the Fourth Proportional to 99,465.29, 137,263.85 and 54,144.57

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Solution

The fourth proportional to 99,465.29, 137,263.85 and 54,144.57 is: 74,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,465.29 : 137,263.85 = 54,144.57 : x
  2. Step 2: Convert to fraction form
    99,465.29/137,263.85 = 54,144.57/x
  3. Step 3: Cross multiply
    99,465.29x = 137,263.85 × 54,144.57
  4. Step 4: Simplify right side
    99,465.29x = 7,432,091,864.07
  5. Step 5: Solve for x
    x = 7,432,091,864.07/99,465.29
  6. Step 6: Final answer
    x = 74,720.46

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