Home / 281,232.19-421,761.36-81,567.25

Finding the Fourth Proportional to 281,232.19, 421,761.36 and 81,567.25

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Solution

The fourth proportional to 281,232.19, 421,761.36 and 81,567.25 is: 122,325.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,232.19 : 421,761.36 = 81,567.25 : x
  2. Step 2: Convert to fraction form
    281,232.19/421,761.36 = 81,567.25/x
  3. Step 3: Cross multiply
    281,232.19x = 421,761.36 × 81,567.25
  4. Step 4: Simplify right side
    281,232.19x = 34,401,914,291.46
  5. Step 5: Solve for x
    x = 34,401,914,291.46/281,232.19
  6. Step 6: Final answer
    x = 122,325.66

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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.