Home / 187,146.50-280,779.68-67,122.59

Finding the Fourth Proportional to 187,146.50, 280,779.68 and 67,122.59

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Solution

The fourth proportional to 187,146.50, 280,779.68 and 67,122.59 is: 100,705.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,146.50 : 280,779.68 = 67,122.59 : x
  2. Step 2: Convert to fraction form
    187,146.50/280,779.68 = 67,122.59/x
  3. Step 3: Cross multiply
    187,146.50x = 280,779.68 × 67,122.59
  4. Step 4: Simplify right side
    187,146.50x = 18,846,658,104.88
  5. Step 5: Solve for x
    x = 18,846,658,104.88/187,146.50
  6. Step 6: Final answer
    x = 100,705.38

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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.