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Finding the Fourth Proportional to 194,751.20, 292,136.40 and 101,439.20

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Solution

The fourth proportional to 194,751.20, 292,136.40 and 101,439.20 is: 152,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,751.20 : 292,136.40 = 101,439.20 : x
  2. Step 2: Convert to fraction form
    194,751.20/292,136.40 = 101,439.20/x
  3. Step 3: Cross multiply
    194,751.20x = 292,136.40 × 101,439.20
  4. Step 4: Simplify right side
    194,751.20x = 29,634,082,706.88
  5. Step 5: Solve for x
    x = 29,634,082,706.88/194,751.20
  6. Step 6: Final answer
    x = 152,163.80

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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.