Home / 90,789.56-136,156.65-72,977.96

Finding the Fourth Proportional to 90,789.56, 136,156.65 and 72,977.96

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Solution

The fourth proportional to 90,789.56, 136,156.65 and 72,977.96 is: 109,444.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,789.56 : 136,156.65 = 72,977.96 : x
  2. Step 2: Convert to fraction form
    90,789.56/136,156.65 = 72,977.96/x
  3. Step 3: Cross multiply
    90,789.56x = 136,156.65 × 72,977.96
  4. Step 4: Simplify right side
    90,789.56x = 9,936,434,624.16
  5. Step 5: Solve for x
    x = 9,936,434,624.16/90,789.56
  6. Step 6: Final answer
    x = 109,444.68

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