Home / 154,215.90-231,669.45-147,918.30

Finding the Fourth Proportional to 154,215.90, 231,669.45 and 147,918.30

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Solution

The fourth proportional to 154,215.90, 231,669.45 and 147,918.30 is: 222,208.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,215.90 : 231,669.45 = 147,918.30 : x
  2. Step 2: Convert to fraction form
    154,215.90/231,669.45 = 147,918.30/x
  3. Step 3: Cross multiply
    154,215.90x = 231,669.45 × 147,918.30
  4. Step 4: Simplify right side
    154,215.90x = 34,268,151,205.94
  5. Step 5: Solve for x
    x = 34,268,151,205.94/154,215.90
  6. Step 6: Final answer
    x = 222,208.94

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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.