Home / 156,638.70-234,958.05-103,494.60

Finding the Fourth Proportional to 156,638.70, 234,958.05 and 103,494.60

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Solution

The fourth proportional to 156,638.70, 234,958.05 and 103,494.60 is: 155,241.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,638.70 : 234,958.05 = 103,494.60 : x
  2. Step 2: Convert to fraction form
    156,638.70/234,958.05 = 103,494.60/x
  3. Step 3: Cross multiply
    156,638.70x = 234,958.05 × 103,494.60
  4. Step 4: Simplify right side
    156,638.70x = 24,316,889,401.53
  5. Step 5: Solve for x
    x = 24,316,889,401.53/156,638.70
  6. Step 6: Final answer
    x = 155,241.90

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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.