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Finding the Fourth Proportional to 157,140.82, 216,849.36 and 85,519

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Solution

The fourth proportional to 157,140.82, 216,849.36 and 85,519 is: 118,013.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,140.82 : 216,849.36 = 85,519 : x
  2. Step 2: Convert to fraction form
    157,140.82/216,849.36 = 85,519/x
  3. Step 3: Cross multiply
    157,140.82x = 216,849.36 × 85,519
  4. Step 4: Simplify right side
    157,140.82x = 18,544,740,417.84
  5. Step 5: Solve for x
    x = 18,544,740,417.84/157,140.82
  6. Step 6: Final answer
    x = 118,013.51

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