Home / 129,868.18-194,809.68-36,381.22

Finding the Fourth Proportional to 129,868.18, 194,809.68 and 36,381.22

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Solution

The fourth proportional to 129,868.18, 194,809.68 and 36,381.22 is: 54,573.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,868.18 : 194,809.68 = 36,381.22 : x
  2. Step 2: Convert to fraction form
    129,868.18/194,809.68 = 36,381.22/x
  3. Step 3: Cross multiply
    129,868.18x = 194,809.68 × 36,381.22
  4. Step 4: Simplify right side
    129,868.18x = 7,087,413,826.21
  5. Step 5: Solve for x
    x = 7,087,413,826.21/129,868.18
  6. Step 6: Final answer
    x = 54,573.91

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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.