Home / 141,741.45-195,605.55-78,079.30

Finding the Fourth Proportional to 141,741.45, 195,605.55 and 78,079.30

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Solution

The fourth proportional to 141,741.45, 195,605.55 and 78,079.30 is: 107,750.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,741.45 : 195,605.55 = 78,079.30 : x
  2. Step 2: Convert to fraction form
    141,741.45/195,605.55 = 78,079.30/x
  3. Step 3: Cross multiply
    141,741.45x = 195,605.55 × 78,079.30
  4. Step 4: Simplify right side
    141,741.45x = 15,272,744,420.12
  5. Step 5: Solve for x
    x = 15,272,744,420.12/141,741.45
  6. Step 6: Final answer
    x = 107,750.73

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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.