Home / 141,969.48-195,914.45-78,305.91

Finding the Fourth Proportional to 141,969.48, 195,914.45 and 78,305.91

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Solution

The fourth proportional to 141,969.48, 195,914.45 and 78,305.91 is: 108,060.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,969.48 : 195,914.45 = 78,305.91 : x
  2. Step 2: Convert to fraction form
    141,969.48/195,914.45 = 78,305.91/x
  3. Step 3: Cross multiply
    141,969.48x = 195,914.45 × 78,305.91
  4. Step 4: Simplify right side
    141,969.48x = 15,341,259,289.40
  5. Step 5: Solve for x
    x = 15,341,259,289.40/141,969.48
  6. Step 6: Final answer
    x = 108,060.26

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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.