Home / 187,910.80-281,871.60-47,669.20

Finding the Fourth Proportional to 187,910.80, 281,871.60 and 47,669.20

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Solution

The fourth proportional to 187,910.80, 281,871.60 and 47,669.20 is: 71,505.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,910.80 : 281,871.60 = 47,669.20 : x
  2. Step 2: Convert to fraction form
    187,910.80/281,871.60 = 47,669.20/x
  3. Step 3: Cross multiply
    187,910.80x = 281,871.60 × 47,669.20
  4. Step 4: Simplify right side
    187,910.80x = 13,436,593,674.72
  5. Step 5: Solve for x
    x = 13,436,593,674.72/187,910.80
  6. Step 6: Final answer
    x = 71,505.17

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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.