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Finding the Fourth Proportional to 116,543.80, 174,902.10 and 77,087.80

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Solution

The fourth proportional to 116,543.80, 174,902.10 and 77,087.80 is: 115,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,543.80 : 174,902.10 = 77,087.80 : x
  2. Step 2: Convert to fraction form
    116,543.80/174,902.10 = 77,087.80/x
  3. Step 3: Cross multiply
    116,543.80x = 174,902.10 × 77,087.80
  4. Step 4: Simplify right side
    116,543.80x = 13,482,818,104.38
  5. Step 5: Solve for x
    x = 13,482,818,104.38/116,543.80
  6. Step 6: Final answer
    x = 115,688.85

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