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Finding the Fourth Proportional to 112,299.91, 154,972.80 and 61,312.20

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Solution

The fourth proportional to 112,299.91, 154,972.80 and 61,312.20 is: 84,610.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,299.91 : 154,972.80 = 61,312.20 : x
  2. Step 2: Convert to fraction form
    112,299.91/154,972.80 = 61,312.20/x
  3. Step 3: Cross multiply
    112,299.91x = 154,972.80 × 61,312.20
  4. Step 4: Simplify right side
    112,299.91x = 9,501,723,308.16
  5. Step 5: Solve for x
    x = 9,501,723,308.16/112,299.91
  6. Step 6: Final answer
    x = 84,610.25

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