Home / 123,704.20-185,475.30-48,779.20

Finding the Fourth Proportional to 123,704.20, 185,475.30 and 48,779.20

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Solution

The fourth proportional to 123,704.20, 185,475.30 and 48,779.20 is: 73,136.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,704.20 : 185,475.30 = 48,779.20 : x
  2. Step 2: Convert to fraction form
    123,704.20/185,475.30 = 48,779.20/x
  3. Step 3: Cross multiply
    123,704.20x = 185,475.30 × 48,779.20
  4. Step 4: Simplify right side
    123,704.20x = 9,047,336,753.76
  5. Step 5: Solve for x
    x = 9,047,336,753.76/123,704.20
  6. Step 6: Final answer
    x = 73,136.86

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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.