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Finding the Fourth Proportional to 157,762.76, 217,710.96 and 86,142.56

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Solution

The fourth proportional to 157,762.76, 217,710.96 and 86,142.56 is: 118,875.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,762.76 : 217,710.96 = 86,142.56 : x
  2. Step 2: Convert to fraction form
    157,762.76/217,710.96 = 86,142.56/x
  3. Step 3: Cross multiply
    157,762.76x = 217,710.96 × 86,142.56
  4. Step 4: Simplify right side
    157,762.76x = 18,754,179,434.46
  5. Step 5: Solve for x
    x = 18,754,179,434.46/157,762.76
  6. Step 6: Final answer
    x = 118,875.83

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