Home / 141,112.40-194,700.71-79,860

Finding the Fourth Proportional to 141,112.40, 194,700.71 and 79,860

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Solution

The fourth proportional to 141,112.40, 194,700.71 and 79,860 is: 110,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,112.40 : 194,700.71 = 79,860 : x
  2. Step 2: Convert to fraction form
    141,112.40/194,700.71 = 79,860/x
  3. Step 3: Cross multiply
    141,112.40x = 194,700.71 × 79,860
  4. Step 4: Simplify right side
    141,112.40x = 15,548,798,700.60
  5. Step 5: Solve for x
    x = 15,548,798,700.60/141,112.40
  6. Step 6: Final answer
    x = 110,187.33

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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.