Home / 210,105.15-289,947.21-114,613.86

Finding the Fourth Proportional to 210,105.15, 289,947.21 and 114,613.86

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Solution

The fourth proportional to 210,105.15, 289,947.21 and 114,613.86 is: 158,168.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,105.15 : 289,947.21 = 114,613.86 : x
  2. Step 2: Convert to fraction form
    210,105.15/289,947.21 = 114,613.86/x
  3. Step 3: Cross multiply
    210,105.15x = 289,947.21 × 114,613.86
  4. Step 4: Simplify right side
    210,105.15x = 33,231,968,934.33
  5. Step 5: Solve for x
    x = 33,231,968,934.33/210,105.15
  6. Step 6: Final answer
    x = 158,168.27

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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.