Home / 130,779.62-196,245.11-54,871.35

Finding the Fourth Proportional to 130,779.62, 196,245.11 and 54,871.35

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Solution

The fourth proportional to 130,779.62, 196,245.11 and 54,871.35 is: 82,338.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,779.62 : 196,245.11 = 54,871.35 : x
  2. Step 2: Convert to fraction form
    130,779.62/196,245.11 = 54,871.35/x
  3. Step 3: Cross multiply
    130,779.62x = 196,245.11 × 54,871.35
  4. Step 4: Simplify right side
    130,779.62x = 10,768,233,842.24
  5. Step 5: Solve for x
    x = 10,768,233,842.24/130,779.62
  6. Step 6: Final answer
    x = 82,338.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.