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Finding the Fourth Proportional to 102,956.76, 142,169.00 and 64,779.93

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Solution

The fourth proportional to 102,956.76, 142,169.00 and 64,779.93 is: 89,452.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,956.76 : 142,169.00 = 64,779.93 : x
  2. Step 2: Convert to fraction form
    102,956.76/142,169.00 = 64,779.93/x
  3. Step 3: Cross multiply
    102,956.76x = 142,169.00 × 64,779.93
  4. Step 4: Simplify right side
    102,956.76x = 9,209,697,544.27
  5. Step 5: Solve for x
    x = 9,209,697,544.27/102,956.76
  6. Step 6: Final answer
    x = 89,452.09

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