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Finding the Fourth Proportional to 112,589.92, 155,404.80 and 70,123.36

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Solution

The fourth proportional to 112,589.92, 155,404.80 and 70,123.36 is: 96,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,589.92 : 155,404.80 = 70,123.36 : x
  2. Step 2: Convert to fraction form
    112,589.92/155,404.80 = 70,123.36/x
  3. Step 3: Cross multiply
    112,589.92x = 155,404.80 × 70,123.36
  4. Step 4: Simplify right side
    112,589.92x = 10,897,506,736.13
  5. Step 5: Solve for x
    x = 10,897,506,736.13/112,589.92
  6. Step 6: Final answer
    x = 96,789.36

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