Home / 170,788.44-255,839.40-85,140.84

Finding the Fourth Proportional to 170,788.44, 255,839.40 and 85,140.84

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Solution

The fourth proportional to 170,788.44, 255,839.40 and 85,140.84 is: 127,540.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,788.44 : 255,839.40 = 85,140.84 : x
  2. Step 2: Convert to fraction form
    170,788.44/255,839.40 = 85,140.84/x
  3. Step 3: Cross multiply
    170,788.44x = 255,839.40 × 85,140.84
  4. Step 4: Simplify right side
    170,788.44x = 21,782,381,421.10
  5. Step 5: Solve for x
    x = 21,782,381,421.10/170,788.44
  6. Step 6: Final answer
    x = 127,540.14

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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.