Home / 102,817.55-141,865.22-59,782.86

Finding the Fourth Proportional to 102,817.55, 141,865.22 and 59,782.86

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Solution

The fourth proportional to 102,817.55, 141,865.22 and 59,782.86 is: 82,486.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,817.55 : 141,865.22 = 59,782.86 : x
  2. Step 2: Convert to fraction form
    102,817.55/141,865.22 = 59,782.86/x
  3. Step 3: Cross multiply
    102,817.55x = 141,865.22 × 59,782.86
  4. Step 4: Simplify right side
    102,817.55x = 8,481,108,735.59
  5. Step 5: Solve for x
    x = 8,481,108,735.59/102,817.55
  6. Step 6: Final answer
    x = 82,486.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.