Home / 281,770.02-422,720.55-82,111.62

Finding the Fourth Proportional to 281,770.02, 422,720.55 and 82,111.62

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Solution

The fourth proportional to 281,770.02, 422,720.55 and 82,111.62 is: 123,186.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,770.02 : 422,720.55 = 82,111.62 : x
  2. Step 2: Convert to fraction form
    281,770.02/422,720.55 = 82,111.62/x
  3. Step 3: Cross multiply
    281,770.02x = 422,720.55 × 82,111.62
  4. Step 4: Simplify right side
    281,770.02x = 34,710,269,167.79
  5. Step 5: Solve for x
    x = 34,710,269,167.79/281,770.02
  6. Step 6: Final answer
    x = 123,186.52

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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.