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Finding the Fourth Proportional to 70,072.33, 105,126.29 and 20,151.36

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Solution

The fourth proportional to 70,072.33, 105,126.29 and 20,151.36 is: 30,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,072.33 : 105,126.29 = 20,151.36 : x
  2. Step 2: Convert to fraction form
    70,072.33/105,126.29 = 20,151.36/x
  3. Step 3: Cross multiply
    70,072.33x = 105,126.29 × 20,151.36
  4. Step 4: Simplify right side
    70,072.33x = 2,118,437,715.25
  5. Step 5: Solve for x
    x = 2,118,437,715.25/70,072.33
  6. Step 6: Final answer
    x = 30,232.16

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