Home / 187,431.50-281,147.52-76,623.50

Finding the Fourth Proportional to 187,431.50, 281,147.52 and 76,623.50

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Solution

The fourth proportional to 187,431.50, 281,147.52 and 76,623.50 is: 114,935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,431.50 : 281,147.52 = 76,623.50 : x
  2. Step 2: Convert to fraction form
    187,431.50/281,147.52 = 76,623.50/x
  3. Step 3: Cross multiply
    187,431.50x = 281,147.52 × 76,623.50
  4. Step 4: Simplify right side
    187,431.50x = 21,542,506,998.72
  5. Step 5: Solve for x
    x = 21,542,506,998.72/187,431.50
  6. Step 6: Final answer
    x = 114,935.36

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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.