Home / 141,287.13-194,787.72-121,057.38

Finding the Fourth Proportional to 141,287.13, 194,787.72 and 121,057.38

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Solution

The fourth proportional to 141,287.13, 194,787.72 and 121,057.38 is: 166,897.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,287.13 : 194,787.72 = 121,057.38 : x
  2. Step 2: Convert to fraction form
    141,287.13/194,787.72 = 121,057.38/x
  3. Step 3: Cross multiply
    141,287.13x = 194,787.72 × 121,057.38
  4. Step 4: Simplify right side
    141,287.13x = 23,580,491,039.37
  5. Step 5: Solve for x
    x = 23,580,491,039.37/141,287.13
  6. Step 6: Final answer
    x = 166,897.66

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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.