Home / 137,388.53-206,112.38-42,616.81

Finding the Fourth Proportional to 137,388.53, 206,112.38 and 42,616.81

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Solution

The fourth proportional to 137,388.53, 206,112.38 and 42,616.81 is: 63,934.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,388.53 : 206,112.38 = 42,616.81 : x
  2. Step 2: Convert to fraction form
    137,388.53/206,112.38 = 42,616.81/x
  3. Step 3: Cross multiply
    137,388.53x = 206,112.38 × 42,616.81
  4. Step 4: Simplify right side
    137,388.53x = 8,783,850,893.46
  5. Step 5: Solve for x
    x = 8,783,850,893.46/137,388.53
  6. Step 6: Final answer
    x = 63,934.38

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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.