Home / 113,725.26-156,939.12-65,986.86

Finding the Fourth Proportional to 113,725.26, 156,939.12 and 65,986.86

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Solution

The fourth proportional to 113,725.26, 156,939.12 and 65,986.86 is: 91,060.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,725.26 : 156,939.12 = 65,986.86 : x
  2. Step 2: Convert to fraction form
    113,725.26/156,939.12 = 65,986.86/x
  3. Step 3: Cross multiply
    113,725.26x = 156,939.12 × 65,986.86
  4. Step 4: Simplify right side
    113,725.26x = 10,355,919,739.96
  5. Step 5: Solve for x
    x = 10,355,919,739.96/113,725.26
  6. Step 6: Final answer
    x = 91,060.86

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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.