Home / 141,769.02-195,669.54-81,380.46

Finding the Fourth Proportional to 141,769.02, 195,669.54 and 81,380.46

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Solution

The fourth proportional to 141,769.02, 195,669.54 and 81,380.46 is: 112,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,769.02 : 195,669.54 = 81,380.46 : x
  2. Step 2: Convert to fraction form
    141,769.02/195,669.54 = 81,380.46/x
  3. Step 3: Cross multiply
    141,769.02x = 195,669.54 × 81,380.46
  4. Step 4: Simplify right side
    141,769.02x = 15,923,677,173.19
  5. Step 5: Solve for x
    x = 15,923,677,173.19/141,769.02
  6. Step 6: Final answer
    x = 112,321.28

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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.