Home / 155,511.76-214,709.52-119,638.48

Finding the Fourth Proportional to 155,511.76, 214,709.52 and 119,638.48

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Solution

The fourth proportional to 155,511.76, 214,709.52 and 119,638.48 is: 165,180.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,511.76 : 214,709.52 = 119,638.48 : x
  2. Step 2: Convert to fraction form
    155,511.76/214,709.52 = 119,638.48/x
  3. Step 3: Cross multiply
    155,511.76x = 214,709.52 × 119,638.48
  4. Step 4: Simplify right side
    155,511.76x = 25,687,520,614.33
  5. Step 5: Solve for x
    x = 25,687,520,614.33/155,511.76
  6. Step 6: Final answer
    x = 165,180.57

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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.