Home / 141,425.08-195,167.34-77,767

Finding the Fourth Proportional to 141,425.08, 195,167.34 and 77,767

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Solution

The fourth proportional to 141,425.08, 195,167.34 and 77,767 is: 107,318.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,425.08 : 195,167.34 = 77,767 : x
  2. Step 2: Convert to fraction form
    141,425.08/195,167.34 = 77,767/x
  3. Step 3: Cross multiply
    141,425.08x = 195,167.34 × 77,767
  4. Step 4: Simplify right side
    141,425.08x = 15,177,578,529.78
  5. Step 5: Solve for x
    x = 15,177,578,529.78/141,425.08
  6. Step 6: Final answer
    x = 107,318.86

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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.