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Finding the Fourth Proportional to 141,645.64, 212,019.18 and 79,126.60

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Solution

The fourth proportional to 141,645.64, 212,019.18 and 79,126.60 is: 118,438.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,645.64 : 212,019.18 = 79,126.60 : x
  2. Step 2: Convert to fraction form
    141,645.64/212,019.18 = 79,126.60/x
  3. Step 3: Cross multiply
    141,645.64x = 212,019.18 × 79,126.60
  4. Step 4: Simplify right side
    141,645.64x = 16,776,356,848.19
  5. Step 5: Solve for x
    x = 16,776,356,848.19/141,645.64
  6. Step 6: Final answer
    x = 118,438.92

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