Home / 187,785.52-281,481.45-69,381.34

Finding the Fourth Proportional to 187,785.52, 281,481.45 and 69,381.34

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Solution

The fourth proportional to 187,785.52, 281,481.45 and 69,381.34 is: 103,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,785.52 : 281,481.45 = 69,381.34 : x
  2. Step 2: Convert to fraction form
    187,785.52/281,481.45 = 69,381.34/x
  3. Step 3: Cross multiply
    187,785.52x = 281,481.45 × 69,381.34
  4. Step 4: Simplify right side
    187,785.52x = 19,529,559,222.26
  5. Step 5: Solve for x
    x = 19,529,559,222.26/187,785.52
  6. Step 6: Final answer
    x = 103,999.28

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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.