Home / 133,311.07-199,966.81-53,385.03

Finding the Fourth Proportional to 133,311.07, 199,966.81 and 53,385.03

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Solution

The fourth proportional to 133,311.07, 199,966.81 and 53,385.03 is: 80,077.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,311.07 : 199,966.81 = 53,385.03 : x
  2. Step 2: Convert to fraction form
    133,311.07/199,966.81 = 53,385.03/x
  3. Step 3: Cross multiply
    133,311.07x = 199,966.81 × 53,385.03
  4. Step 4: Simplify right side
    133,311.07x = 10,675,234,150.85
  5. Step 5: Solve for x
    x = 10,675,234,150.85/133,311.07
  6. Step 6: Final answer
    x = 80,077.63

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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.