Home / 142,052.09-211,913.84-138,190.82

Finding the Fourth Proportional to 142,052.09, 211,913.84 and 138,190.82

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Solution

The fourth proportional to 142,052.09, 211,913.84 and 138,190.82 is: 206,153.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,052.09 : 211,913.84 = 138,190.82 : x
  2. Step 2: Convert to fraction form
    142,052.09/211,913.84 = 138,190.82/x
  3. Step 3: Cross multiply
    142,052.09x = 211,913.84 × 138,190.82
  4. Step 4: Simplify right side
    142,052.09x = 29,284,546,604.86
  5. Step 5: Solve for x
    x = 29,284,546,604.86/142,052.09
  6. Step 6: Final answer
    x = 206,153.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.