Home / 138,829.26-191,584.44-75,166.86

Finding the Fourth Proportional to 138,829.26, 191,584.44 and 75,166.86

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Solution

The fourth proportional to 138,829.26, 191,584.44 and 75,166.86 is: 103,730.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,829.26 : 191,584.44 = 75,166.86 : x
  2. Step 2: Convert to fraction form
    138,829.26/191,584.44 = 75,166.86/x
  3. Step 3: Cross multiply
    138,829.26x = 191,584.44 × 75,166.86
  4. Step 4: Simplify right side
    138,829.26x = 14,400,800,779.66
  5. Step 5: Solve for x
    x = 14,400,800,779.66/138,829.26
  6. Step 6: Final answer
    x = 103,730.30

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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.