Home / 141,100.68-194,718.78-77,438.64

Finding the Fourth Proportional to 141,100.68, 194,718.78 and 77,438.64

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Solution

The fourth proportional to 141,100.68, 194,718.78 and 77,438.64 is: 106,865.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,100.68 : 194,718.78 = 77,438.64 : x
  2. Step 2: Convert to fraction form
    141,100.68/194,718.78 = 77,438.64/x
  3. Step 3: Cross multiply
    141,100.68x = 194,718.78 × 77,438.64
  4. Step 4: Simplify right side
    141,100.68x = 15,078,757,505.66
  5. Step 5: Solve for x
    x = 15,078,757,505.66/141,100.68
  6. Step 6: Final answer
    x = 106,865.24

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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.