Home / 133,813.45-200,720.52-45,129.25

Finding the Fourth Proportional to 133,813.45, 200,720.52 and 45,129.25

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Solution

The fourth proportional to 133,813.45, 200,720.52 and 45,129.25 is: 67,693.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,813.45 : 200,720.52 = 45,129.25 : x
  2. Step 2: Convert to fraction form
    133,813.45/200,720.52 = 45,129.25/x
  3. Step 3: Cross multiply
    133,813.45x = 200,720.52 × 45,129.25
  4. Step 4: Simplify right side
    133,813.45x = 9,058,366,025.41
  5. Step 5: Solve for x
    x = 9,058,366,025.41/133,813.45
  6. Step 6: Final answer
    x = 67,693.99

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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.