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Finding the Fourth Proportional to 156,711.90, 235,089.45 and 56,847.90

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Solution

The fourth proportional to 156,711.90, 235,089.45 and 56,847.90 is: 85,279.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,711.90 : 235,089.45 = 56,847.90 : x
  2. Step 2: Convert to fraction form
    156,711.90/235,089.45 = 56,847.90/x
  3. Step 3: Cross multiply
    156,711.90x = 235,089.45 × 56,847.90
  4. Step 4: Simplify right side
    156,711.90x = 13,364,341,544.66
  5. Step 5: Solve for x
    x = 13,364,341,544.66/156,711.90
  6. Step 6: Final answer
    x = 85,279.69

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