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Finding the Fourth Proportional to 187,237.76, 280,608.24 and 81,942.08

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Solution

The fourth proportional to 187,237.76, 280,608.24 and 81,942.08 is: 122,804.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,237.76 : 280,608.24 = 81,942.08 : x
  2. Step 2: Convert to fraction form
    187,237.76/280,608.24 = 81,942.08/x
  3. Step 3: Cross multiply
    187,237.76x = 280,608.24 × 81,942.08
  4. Step 4: Simplify right side
    187,237.76x = 22,993,622,850.74
  5. Step 5: Solve for x
    x = 22,993,622,850.74/187,237.76
  6. Step 6: Final answer
    x = 122,804.41

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1.5x scale

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.