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Finding the Fourth Proportional to 156,980.94, 235,466.14 and 68,234.44

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Solution

The fourth proportional to 156,980.94, 235,466.14 and 68,234.44 is: 102,349.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980.94 : 235,466.14 = 68,234.44 : x
  2. Step 2: Convert to fraction form
    156,980.94/235,466.14 = 68,234.44/x
  3. Step 3: Cross multiply
    156,980.94x = 235,466.14 × 68,234.44
  4. Step 4: Simplify right side
    156,980.94x = 16,066,900,201.86
  5. Step 5: Solve for x
    x = 16,066,900,201.86/156,980.94
  6. Step 6: Final answer
    x = 102,349.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.