Home / 141,520.35-195,297.79-77,858.00

Finding the Fourth Proportional to 141,520.35, 195,297.79 and 77,858.00

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Solution

The fourth proportional to 141,520.35, 195,297.79 and 77,858.00 is: 107,443.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,520.35 : 195,297.79 = 77,858.00 : x
  2. Step 2: Convert to fraction form
    141,520.35/195,297.79 = 77,858.00/x
  3. Step 3: Cross multiply
    141,520.35x = 195,297.79 × 77,858.00
  4. Step 4: Simplify right side
    141,520.35x = 15,205,494,796.10
  5. Step 5: Solve for x
    x = 15,205,494,796.10/141,520.35
  6. Step 6: Final answer
    x = 107,443.87

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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.