Home / 129,553.11-194,336.63-40,813.56

Finding the Fourth Proportional to 129,553.11, 194,336.63 and 40,813.56

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Solution

The fourth proportional to 129,553.11, 194,336.63 and 40,813.56 is: 61,222.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,553.11 : 194,336.63 = 40,813.56 : x
  2. Step 2: Convert to fraction form
    129,553.11/194,336.63 = 40,813.56/x
  3. Step 3: Cross multiply
    129,553.11x = 194,336.63 × 40,813.56
  4. Step 4: Simplify right side
    129,553.11x = 7,931,569,810.74
  5. Step 5: Solve for x
    x = 7,931,569,810.74/129,553.11
  6. Step 6: Final answer
    x = 61,222.53

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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.