Home / 142,577.72-196,739.88-82,167.92

Finding the Fourth Proportional to 142,577.72, 196,739.88 and 82,167.92

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Solution

The fourth proportional to 142,577.72, 196,739.88 and 82,167.92 is: 113,381.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,577.72 : 196,739.88 = 82,167.92 : x
  2. Step 2: Convert to fraction form
    142,577.72/196,739.88 = 82,167.92/x
  3. Step 3: Cross multiply
    142,577.72x = 196,739.88 × 82,167.92
  4. Step 4: Simplify right side
    142,577.72x = 16,165,706,720.65
  5. Step 5: Solve for x
    x = 16,165,706,720.65/142,577.72
  6. Step 6: Final answer
    x = 113,381.72

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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.