Home / 187,890.45-281,129.43-131,839.93

Finding the Fourth Proportional to 187,890.45, 281,129.43 and 131,839.93

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Solution

The fourth proportional to 187,890.45, 281,129.43 and 131,839.93 is: 197,264.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,890.45 : 281,129.43 = 131,839.93 : x
  2. Step 2: Convert to fraction form
    187,890.45/281,129.43 = 131,839.93/x
  3. Step 3: Cross multiply
    187,890.45x = 281,129.43 × 131,839.93
  4. Step 4: Simplify right side
    187,890.45x = 37,064,084,372.14
  5. Step 5: Solve for x
    x = 37,064,084,372.14/187,890.45
  6. Step 6: Final answer
    x = 197,264.33

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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.