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Finding the Fourth Proportional to 156,993.73, 235,457.62 and 51,788.05

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Solution

The fourth proportional to 156,993.73, 235,457.62 and 51,788.05 is: 77,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,993.73 : 235,457.62 = 51,788.05 : x
  2. Step 2: Convert to fraction form
    156,993.73/235,457.62 = 51,788.05/x
  3. Step 3: Cross multiply
    156,993.73x = 235,457.62 × 51,788.05
  4. Step 4: Simplify right side
    156,993.73x = 12,193,890,997.44
  5. Step 5: Solve for x
    x = 12,193,890,997.44/156,993.73
  6. Step 6: Final answer
    x = 77,671.20

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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.