Home / 115,289.12-159,097.56-64,988.12

Finding the Fourth Proportional to 115,289.12, 159,097.56 and 64,988.12

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Solution

The fourth proportional to 115,289.12, 159,097.56 and 64,988.12 is: 89,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,289.12 : 159,097.56 = 64,988.12 : x
  2. Step 2: Convert to fraction form
    115,289.12/159,097.56 = 64,988.12/x
  3. Step 3: Cross multiply
    115,289.12x = 159,097.56 × 64,988.12
  4. Step 4: Simplify right side
    115,289.12x = 10,339,451,320.99
  5. Step 5: Solve for x
    x = 10,339,451,320.99/115,289.12
  6. Step 6: Final answer
    x = 89,682.80

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