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Finding the Fourth Proportional to 115,359.70, 173,039.55 and 92,031.70

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Solution

The fourth proportional to 115,359.70, 173,039.55 and 92,031.70 is: 138,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,359.70 : 173,039.55 = 92,031.70 : x
  2. Step 2: Convert to fraction form
    115,359.70/173,039.55 = 92,031.70/x
  3. Step 3: Cross multiply
    115,359.70x = 173,039.55 × 92,031.70
  4. Step 4: Simplify right side
    115,359.70x = 15,925,123,953.74
  5. Step 5: Solve for x
    x = 15,925,123,953.74/115,359.70
  6. Step 6: Final answer
    x = 138,047.55

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