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Finding the Fourth Proportional to 120,068.48, 180,102.72 and 45,205.42

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Solution

The fourth proportional to 120,068.48, 180,102.72 and 45,205.42 is: 67,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,068.48 : 180,102.72 = 45,205.42 : x
  2. Step 2: Convert to fraction form
    120,068.48/180,102.72 = 45,205.42/x
  3. Step 3: Cross multiply
    120,068.48x = 180,102.72 × 45,205.42
  4. Step 4: Simplify right side
    120,068.48x = 8,141,619,030.56
  5. Step 5: Solve for x
    x = 8,141,619,030.56/120,068.48
  6. Step 6: Final answer
    x = 67,808.13

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