Home / 156,941.60-235,442.69-66,983

Finding the Fourth Proportional to 156,941.60, 235,442.69 and 66,983

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Solution

The fourth proportional to 156,941.60, 235,442.69 and 66,983 is: 100,487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,941.60 : 235,442.69 = 66,983 : x
  2. Step 2: Convert to fraction form
    156,941.60/235,442.69 = 66,983/x
  3. Step 3: Cross multiply
    156,941.60x = 235,442.69 × 66,983
  4. Step 4: Simplify right side
    156,941.60x = 15,770,657,704.27
  5. Step 5: Solve for x
    x = 15,770,657,704.27/156,941.60
  6. Step 6: Final answer
    x = 100,487.43

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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.