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Finding the Fourth Proportional to 99,018.65, 136,609.84 and 65,045.43

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Solution

The fourth proportional to 99,018.65, 136,609.84 and 65,045.43 is: 89,739.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,018.65 : 136,609.84 = 65,045.43 : x
  2. Step 2: Convert to fraction form
    99,018.65/136,609.84 = 65,045.43/x
  3. Step 3: Cross multiply
    99,018.65x = 136,609.84 × 65,045.43
  4. Step 4: Simplify right side
    99,018.65x = 8,885,845,459.80
  5. Step 5: Solve for x
    x = 8,885,845,459.80/99,018.65
  6. Step 6: Final answer
    x = 89,739.11

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