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Finding the Fourth Proportional to 115,969.10, 173,953.65 and 89,692.70

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Solution

The fourth proportional to 115,969.10, 173,953.65 and 89,692.70 is: 134,539.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,969.10 : 173,953.65 = 89,692.70 : x
  2. Step 2: Convert to fraction form
    115,969.10/173,953.65 = 89,692.70/x
  3. Step 3: Cross multiply
    115,969.10x = 173,953.65 × 89,692.70
  4. Step 4: Simplify right side
    115,969.10x = 15,602,372,543.36
  5. Step 5: Solve for x
    x = 15,602,372,543.36/115,969.10
  6. Step 6: Final answer
    x = 134,539.05

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