Home / 129,868.10-194,474.10-103,624.10

Finding the Fourth Proportional to 129,868.10, 194,474.10 and 103,624.10

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Solution

The fourth proportional to 129,868.10, 194,474.10 and 103,624.10 is: 155,174.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,868.10 : 194,474.10 = 103,624.10 : x
  2. Step 2: Convert to fraction form
    129,868.10/194,474.10 = 103,624.10/x
  3. Step 3: Cross multiply
    129,868.10x = 194,474.10 × 103,624.10
  4. Step 4: Simplify right side
    129,868.10x = 20,152,203,585.81
  5. Step 5: Solve for x
    x = 20,152,203,585.81/129,868.10
  6. Step 6: Final answer
    x = 155,174.39

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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.