Home / 129,817.30-194,732.35-67,609.30

Finding the Fourth Proportional to 129,817.30, 194,732.35 and 67,609.30

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Solution

The fourth proportional to 129,817.30, 194,732.35 and 67,609.30 is: 101,417.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,817.30 : 194,732.35 = 67,609.30 : x
  2. Step 2: Convert to fraction form
    129,817.30/194,732.35 = 67,609.30/x
  3. Step 3: Cross multiply
    129,817.30x = 194,732.35 × 67,609.30
  4. Step 4: Simplify right side
    129,817.30x = 13,165,717,870.86
  5. Step 5: Solve for x
    x = 13,165,717,870.86/129,817.30
  6. Step 6: Final answer
    x = 101,417.28

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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.