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Finding the Fourth Proportional to 145,800.18, 218,206.32 and 89,675.90

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Solution

The fourth proportional to 145,800.18, 218,206.32 and 89,675.90 is: 134,210.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,800.18 : 218,206.32 = 89,675.90 : x
  2. Step 2: Convert to fraction form
    145,800.18/218,206.32 = 89,675.90/x
  3. Step 3: Cross multiply
    145,800.18x = 218,206.32 × 89,675.90
  4. Step 4: Simplify right side
    145,800.18x = 19,567,847,040.66
  5. Step 5: Solve for x
    x = 19,567,847,040.66/145,800.18
  6. Step 6: Final answer
    x = 134,210.03

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