Home / 129,438.70-194,180.85-53,537.02

Finding the Fourth Proportional to 129,438.70, 194,180.85 and 53,537.02

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Solution

The fourth proportional to 129,438.70, 194,180.85 and 53,537.02 is: 80,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,438.70 : 194,180.85 = 53,537.02 : x
  2. Step 2: Convert to fraction form
    129,438.70/194,180.85 = 53,537.02/x
  3. Step 3: Cross multiply
    129,438.70x = 194,180.85 × 53,537.02
  4. Step 4: Simplify right side
    129,438.70x = 10,395,864,050.07
  5. Step 5: Solve for x
    x = 10,395,864,050.07/129,438.70
  6. Step 6: Final answer
    x = 80,314.96

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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.