Home / 137,622.09-206,383.57-47,640.35

Finding the Fourth Proportional to 137,622.09, 206,383.57 and 47,640.35

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Solution

The fourth proportional to 137,622.09, 206,383.57 and 47,640.35 is: 71,443.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,622.09 : 206,383.57 = 47,640.35 : x
  2. Step 2: Convert to fraction form
    137,622.09/206,383.57 = 47,640.35/x
  3. Step 3: Cross multiply
    137,622.09x = 206,383.57 × 47,640.35
  4. Step 4: Simplify right side
    137,622.09x = 9,832,185,509.05
  5. Step 5: Solve for x
    x = 9,832,185,509.05/137,622.09
  6. Step 6: Final answer
    x = 71,443.37

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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.