Home / 141,739.89-195,593.85-78,076.32

Finding the Fourth Proportional to 141,739.89, 195,593.85 and 78,076.32

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Solution

The fourth proportional to 141,739.89, 195,593.85 and 78,076.32 is: 107,741.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,739.89 : 195,593.85 = 78,076.32 : x
  2. Step 2: Convert to fraction form
    141,739.89/195,593.85 = 78,076.32/x
  3. Step 3: Cross multiply
    141,739.89x = 195,593.85 × 78,076.32
  4. Step 4: Simplify right side
    141,739.89x = 15,271,248,022.63
  5. Step 5: Solve for x
    x = 15,271,248,022.63/141,739.89
  6. Step 6: Final answer
    x = 107,741.36

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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.