Home / 156,136.38-234,211.05-45,328.38

Finding the Fourth Proportional to 156,136.38, 234,211.05 and 45,328.38

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Solution

The fourth proportional to 156,136.38, 234,211.05 and 45,328.38 is: 67,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,136.38 : 234,211.05 = 45,328.38 : x
  2. Step 2: Convert to fraction form
    156,136.38/234,211.05 = 45,328.38/x
  3. Step 3: Cross multiply
    156,136.38x = 234,211.05 × 45,328.38
  4. Step 4: Simplify right side
    156,136.38x = 10,616,407,474.60
  5. Step 5: Solve for x
    x = 10,616,407,474.60/156,136.38
  6. Step 6: Final answer
    x = 67,994.45

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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.