Home / 148,619.14-222,548.10-81,985.20

Finding the Fourth Proportional to 148,619.14, 222,548.10 and 81,985.20

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Solution

The fourth proportional to 148,619.14, 222,548.10 and 81,985.20 is: 122,767.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,619.14 : 222,548.10 = 81,985.20 : x
  2. Step 2: Convert to fraction form
    148,619.14/222,548.10 = 81,985.20/x
  3. Step 3: Cross multiply
    148,619.14x = 222,548.10 × 81,985.20
  4. Step 4: Simplify right side
    148,619.14x = 18,245,650,488.12
  5. Step 5: Solve for x
    x = 18,245,650,488.12/148,619.14
  6. Step 6: Final answer
    x = 122,767.84

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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.