Home / 187,640.37-281,461.13-45,485.09

Finding the Fourth Proportional to 187,640.37, 281,461.13 and 45,485.09

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Solution

The fourth proportional to 187,640.37, 281,461.13 and 45,485.09 is: 68,227.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,640.37 : 281,461.13 = 45,485.09 : x
  2. Step 2: Convert to fraction form
    187,640.37/281,461.13 = 45,485.09/x
  3. Step 3: Cross multiply
    187,640.37x = 281,461.13 × 45,485.09
  4. Step 4: Simplify right side
    187,640.37x = 12,802,283,194.82
  5. Step 5: Solve for x
    x = 12,802,283,194.82/187,640.37
  6. Step 6: Final answer
    x = 68,227.77

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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.