Home / 129,619.80-194,429.70-36,125.55

Finding the Fourth Proportional to 129,619.80, 194,429.70 and 36,125.55

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Solution

The fourth proportional to 129,619.80, 194,429.70 and 36,125.55 is: 54,188.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,619.80 : 194,429.70 = 36,125.55 : x
  2. Step 2: Convert to fraction form
    129,619.80/194,429.70 = 36,125.55/x
  3. Step 3: Cross multiply
    129,619.80x = 194,429.70 × 36,125.55
  4. Step 4: Simplify right side
    129,619.80x = 7,023,879,848.84
  5. Step 5: Solve for x
    x = 7,023,879,848.84/129,619.80
  6. Step 6: Final answer
    x = 54,188.33

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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.