Home / 141,129.72-194,789.21-84,573.90

Finding the Fourth Proportional to 141,129.72, 194,789.21 and 84,573.90

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Solution

The fourth proportional to 141,129.72, 194,789.21 and 84,573.90 is: 116,730.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,129.72 : 194,789.21 = 84,573.90 : x
  2. Step 2: Convert to fraction form
    141,129.72/194,789.21 = 84,573.90/x
  3. Step 3: Cross multiply
    141,129.72x = 194,789.21 × 84,573.90
  4. Step 4: Simplify right side
    141,129.72x = 16,474,082,744.75
  5. Step 5: Solve for x
    x = 16,474,082,744.75/141,129.72
  6. Step 6: Final answer
    x = 116,730.07

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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.