Home / 101,277.90-139,735.07-58,255.15

Finding the Fourth Proportional to 101,277.90, 139,735.07 and 58,255.15

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Solution

The fourth proportional to 101,277.90, 139,735.07 and 58,255.15 is: 80,375.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,277.90 : 139,735.07 = 58,255.15 : x
  2. Step 2: Convert to fraction form
    101,277.90/139,735.07 = 58,255.15/x
  3. Step 3: Cross multiply
    101,277.90x = 139,735.07 × 58,255.15
  4. Step 4: Simplify right side
    101,277.90x = 8,140,287,171.83
  5. Step 5: Solve for x
    x = 8,140,287,171.83/101,277.90
  6. Step 6: Final answer
    x = 80,375.75

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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.