Home / 129,813.40-194,752.50-36,318.34

Finding the Fourth Proportional to 129,813.40, 194,752.50 and 36,318.34

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Solution

The fourth proportional to 129,813.40, 194,752.50 and 36,318.34 is: 54,486.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,813.40 : 194,752.50 = 36,318.34 : x
  2. Step 2: Convert to fraction form
    129,813.40/194,752.50 = 36,318.34/x
  3. Step 3: Cross multiply
    129,813.40x = 194,752.50 × 36,318.34
  4. Step 4: Simplify right side
    129,813.40x = 7,073,087,510.85
  5. Step 5: Solve for x
    x = 7,073,087,510.85/129,813.40
  6. Step 6: Final answer
    x = 54,486.57

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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.