Home / 187,820.22-281,763.13-82,636.45

Finding the Fourth Proportional to 187,820.22, 281,763.13 and 82,636.45

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Solution

The fourth proportional to 187,820.22, 281,763.13 and 82,636.45 is: 123,969.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,820.22 : 281,763.13 = 82,636.45 : x
  2. Step 2: Convert to fraction form
    187,820.22/281,763.13 = 82,636.45/x
  3. Step 3: Cross multiply
    187,820.22x = 281,763.13 × 82,636.45
  4. Step 4: Simplify right side
    187,820.22x = 23,283,905,865.37
  5. Step 5: Solve for x
    x = 23,283,905,865.37/187,820.22
  6. Step 6: Final answer
    x = 123,969.11

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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.