Home / 170,135.10-255,241.38-51,815.67

Finding the Fourth Proportional to 170,135.10, 255,241.38 and 51,815.67

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Solution

The fourth proportional to 170,135.10, 255,241.38 and 51,815.67 is: 77,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,135.10 : 255,241.38 = 51,815.67 : x
  2. Step 2: Convert to fraction form
    170,135.10/255,241.38 = 51,815.67/x
  3. Step 3: Cross multiply
    170,135.10x = 255,241.38 × 51,815.67
  4. Step 4: Simplify right side
    170,135.10x = 13,225,503,116.42
  5. Step 5: Solve for x
    x = 13,225,503,116.42/170,135.10
  6. Step 6: Final answer
    x = 77,735.30

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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.