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Finding the Fourth Proportional to 127,538.45, 191,045.16 and 74,820.81

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Solution

The fourth proportional to 127,538.45, 191,045.16 and 74,820.81 is: 112,077.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,538.45 : 191,045.16 = 74,820.81 : x
  2. Step 2: Convert to fraction form
    127,538.45/191,045.16 = 74,820.81/x
  3. Step 3: Cross multiply
    127,538.45x = 191,045.16 × 74,820.81
  4. Step 4: Simplify right side
    127,538.45x = 14,294,153,617.78
  5. Step 5: Solve for x
    x = 14,294,153,617.78/127,538.45
  6. Step 6: Final answer
    x = 112,077.21

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