Home / 141,430.26-195,178.77-77,772.90

Finding the Fourth Proportional to 141,430.26, 195,178.77 and 77,772.90

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Solution

The fourth proportional to 141,430.26, 195,178.77 and 77,772.90 is: 107,329.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,430.26 : 195,178.77 = 77,772.90 : x
  2. Step 2: Convert to fraction form
    141,430.26/195,178.77 = 77,772.90/x
  3. Step 3: Cross multiply
    141,430.26x = 195,178.77 × 77,772.90
  4. Step 4: Simplify right side
    141,430.26x = 15,179,618,961.33
  5. Step 5: Solve for x
    x = 15,179,618,961.33/141,430.26
  6. Step 6: Final answer
    x = 107,329.36

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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.