Home / 107,787.30-161,668.18-28,907.07

Finding the Fourth Proportional to 107,787.30, 161,668.18 and 28,907.07

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Solution

The fourth proportional to 107,787.30, 161,668.18 and 28,907.07 is: 43,357.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,787.30 : 161,668.18 = 28,907.07 : x
  2. Step 2: Convert to fraction form
    107,787.30/161,668.18 = 28,907.07/x
  3. Step 3: Cross multiply
    107,787.30x = 161,668.18 × 28,907.07
  4. Step 4: Simplify right side
    107,787.30x = 4,673,353,396.03
  5. Step 5: Solve for x
    x = 4,673,353,396.03/107,787.30
  6. Step 6: Final answer
    x = 43,357.18

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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.