Home / 141,907.89-195,861.30-81,519.96

Finding the Fourth Proportional to 141,907.89, 195,861.30 and 81,519.96

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Solution

The fourth proportional to 141,907.89, 195,861.30 and 81,519.96 is: 112,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,907.89 : 195,861.30 = 81,519.96 : x
  2. Step 2: Convert to fraction form
    141,907.89/195,861.30 = 81,519.96/x
  3. Step 3: Cross multiply
    141,907.89x = 195,861.30 × 81,519.96
  4. Step 4: Simplify right side
    141,907.89x = 15,966,605,341.55
  5. Step 5: Solve for x
    x = 15,966,605,341.55/141,907.89
  6. Step 6: Final answer
    x = 112,513.87

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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.