Home / 187,880.30-281,942.62-81,368.26

Finding the Fourth Proportional to 187,880.30, 281,942.62 and 81,368.26

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Solution

The fourth proportional to 187,880.30, 281,942.62 and 81,368.26 is: 122,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,880.30 : 281,942.62 = 81,368.26 : x
  2. Step 2: Convert to fraction form
    187,880.30/281,942.62 = 81,368.26/x
  3. Step 3: Cross multiply
    187,880.30x = 281,942.62 × 81,368.26
  4. Step 4: Simplify right side
    187,880.30x = 22,941,180,409.24
  5. Step 5: Solve for x
    x = 22,941,180,409.24/187,880.30
  6. Step 6: Final answer
    x = 122,105.30

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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.