Home / 129,664.13-194,572.73-54,779.42

Finding the Fourth Proportional to 129,664.13, 194,572.73 and 54,779.42

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Solution

The fourth proportional to 129,664.13, 194,572.73 and 54,779.42 is: 82,201.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,664.13 : 194,572.73 = 54,779.42 : x
  2. Step 2: Convert to fraction form
    129,664.13/194,572.73 = 54,779.42/x
  3. Step 3: Cross multiply
    129,664.13x = 194,572.73 × 54,779.42
  4. Step 4: Simplify right side
    129,664.13x = 10,658,581,920.60
  5. Step 5: Solve for x
    x = 10,658,581,920.60/129,664.13
  6. Step 6: Final answer
    x = 82,201.47

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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.