Home / 215,138.58-296,868.51-119,629.86

Finding the Fourth Proportional to 215,138.58, 296,868.51 and 119,629.86

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Solution

The fourth proportional to 215,138.58, 296,868.51 and 119,629.86 is: 165,076.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,138.58 : 296,868.51 = 119,629.86 : x
  2. Step 2: Convert to fraction form
    215,138.58/296,868.51 = 119,629.86/x
  3. Step 3: Cross multiply
    215,138.58x = 296,868.51 × 119,629.86
  4. Step 4: Simplify right side
    215,138.58x = 35,514,338,289.71
  5. Step 5: Solve for x
    x = 35,514,338,289.71/215,138.58
  6. Step 6: Final answer
    x = 165,076.57

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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.