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Finding the Fourth Proportional to 173,875.70, 260,986.35 and 85,229.30

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Solution

The fourth proportional to 173,875.70, 260,986.35 and 85,229.30 is: 127,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,875.70 : 260,986.35 = 85,229.30 : x
  2. Step 2: Convert to fraction form
    173,875.70/260,986.35 = 85,229.30/x
  3. Step 3: Cross multiply
    173,875.70x = 260,986.35 × 85,229.30
  4. Step 4: Simplify right side
    173,875.70x = 22,243,683,920.06
  5. Step 5: Solve for x
    x = 22,243,683,920.06/173,875.70
  6. Step 6: Final answer
    x = 127,928.65

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